Got stuck trying to undo some contact changes on my EVO. I was tired of having all those ‘linked’ accounts because I used HTC sync for Outlook which do not sync with Google account. Android stores the contacts in separate storage locations. If you change the view to only show Phone contact storage and then delete all those contacts, it removes them from the Google storage also. Soon as I saw them disappear, I tried to make sure the sync did not happen with Google. While logged in to Google I made a change to the contacts and this must have caused a conflict. After the change my contacts would give an error on sync but would accept changes to contacts still on the phone, even accepted new contacts. Just the contacts on Google that were not originally on the phone storage would never sync.
To fix this you need to clear the storage manually on the phone. You do this through Settings -> Applications -> Manage applications -> All Apps -> Contacts Storage -> [Clear data] -> Done Return Home
Go back to People and watch them start showing up as the sync automatically starts. If the sync has not started you force a sync from the Settings -> Accounts & Sync -> Google Gmail or [Sync All].
There are apps that allow you to sync your Outlook Contacts with GMail. Still need to test those to give any thoughts but here is a free one I was going to try out. OggSync There should be some open source for doing this also. Google has one but they only offer it to the paid version of Gmail which is really meant for Exchange users. Hope someday they provide a free one that is only for Outlook using POP3 or IMAP.

If you have Outlook Express (OE) running and find you can not delete your emails anymore chances are your mail box dbx file is corrupt or just too big.   Outlook does not by default enable empty deleted email or sent email folders.  These files can become huge over time and tend to become corrupt.  A temp work around is to try the Shift and DEL at the same time while the message is selected (not open).   This bypasses the use of the deleted mail folder.   These folders that everyone refers to are actualy hidden files on your hard drive.  Rather than doing all the steps to make explorer see where the files are here is an alternate method.
1st  Make a backup of the email you wish to keep.   Create a new folder in the root folder of OE,  just above the Inbox.  Move or Copy (prefer copy) all the email to your new folder.
2nd  Open up Explorer and make a new folder in your choice of location.  IE C:\mymailbox
3rd  From the Options menu in OE, locate the Maintenance Tab.  Select change mail folder, browse to where you created the folder and click OK.  You will get a prompt saying to need restart OE.  Restart OE.
4th  After the files move over, close OE.  Now go to the new folder you created in Explorer and look for the files with the same name as your folders from OE.  Inbox.dbx  Send.dbx etc.  Make sure the new folder name you created has a file with that name.  Remove all the other files except the one you created.  There should be nothing there you need and the files will be recreated on the start up of OE.  If you are nervous about it, move the files to a different folder instead of deleting them.
5th  Start OE.  OE should be running normal now and all the emails you could not delete should be gone.   Move your emails back to the Inbox folder if you like. 
Just to note when I had this problem the mail files were huge, 2GB and 800MB.  Remember to empty out the old mail once in a while.

As much as I like some programs to be integrated, some items just don’t seem so helpful.   What there should be is a more simple way to disable these helpful items from the program that put them there.  Such a program is the Adobe Professional ver 7 and 8.   Here are the settings to stop the PDF Maker Office Addin.   The plugin or addin is stored in the registry.  It is just a simple change of a key value “LoadBehavior” from a 3 to a 0.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins\PDFMOutlook.PDFMOutlook]
“LoadBehavior”=dword:00000003 to ”LoadBehavior”=dword:00000000
You will need to change the value on all the Office programs individually.  MS Word will be here and so on.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Word\Addins\PDFMaker.OfficeAddin
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Access\Addins\PDFMaker.OfficeAddin
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Excel\Addins\PDFMaker.OfficeAddin
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\MS Project\Addins\PDFMaker.OfficeAddin
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\PowerPoint\Addins\PDFMaker.OfficeAddin
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Publisher\Addins\PDFMaker.OfficeAddin
Now if you have installed one of the Adobe suites that include Contribute, you will see the entry for this plugin also.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins\Adobe.Contribute.OfficePlugin
Follow the same steps in all the office keys to prevent it from loading in office also. 

For this particular situation you must have SpyBot installed with immunize protection for IExplorer or some other anti-spyware program that blocks website URLs.  This shows up after MicroSoft windows update does a critical security update for IExplorer 7.  KB933566  Searching the support groups the problem is widely known but MS has yet to publish a fix.   If you have Outlook 2007 installed this is not a problem.  Guess MS wants you to upgrade to Outlook 2007 instead…
The problem starts when Outlook tries to open or create a new email message in HTML format.  If you create a new message, soon as you type a letter nothing happens for several seconds after you stop typing.  A few seconds later your letters appear.  Your CPU will be at max usage while this happens.  If you have Word installed, you can change Word to be the editor for HTML emails.  This will stop the hanging when you create a new message from Outlook but opening a new email in HTML will still hang.  Using shortcuts to send attachments will still use the Outlook for creating the new email even with Word is set for default.   Converting all your emails to text or set Outlook to read them as text will stop the hanging.
The cause is from a new security feature ‘bug’ to make Outlook check the restricted zones list for IExplorer looking for blocked URLs in the email.   SpyBot dumps a huge list of websites in the restricted zone, for some reason every letter you type Outlook is checking this list again and again.  If you have an AV program like NOD32, the IMON module is looking for these sites.  You could disable the immunize option in SpyBot.  If you are a FireFox or Opera user, they do not use that list anyway.  Make sure Outlook is not running if you make changes to remove that restricted zone list.  Oddly, it was posted you can add the list back to the zone after Outlook is running without the hangup.  Also found posts saying changing the default group to anything other than Mail or Inbox when Outlook opens can fix this, like Calendar.  Outlook 2007  does not have this problem because it does not use IExplorer’s rendering engine for HTML emails.  Setting the security zone for Outlook to use Internet zone instead of Restricted zone the problem goes away but then you are not blocking much of anything. 
I grabbed the full installer for IE7 which wipes out all the updates and patches before it re-installs IE7.  This clears out all the problems also but then you are running vulnerable to critical IE7 bugs.  I am sure there are other ways to get around the issue till/if MicroSoft fixes the problem. 

 *update*
It seems with SpyBot 1.5 this problem is no longer affecting my machines.  One noted difference, SpyBot is using hosts file for ‘bad’ website domain names.