Windows 7: how to change outlook data file location

Just clean installed Win 7 on its own partition and installed Outlook 2010. Outlook worked fine when I set it up and its data files were on C:\ . Since my data files are on a different partition (M:\) I changed "Documents", "Music" and etc to the M:\ partition.
After, when I opened Outlook a window opened and let me change the drive letters from C:\ to M:\, the problem is that now I get an error 0x8004010F "Outlook data file cannot be accessed" when I open Outlook. I can not figure out a way to find the window again that allows me to set the Data File Location.
I read somewhere that it is best to leave it on C:\ but I can't find a way to do that.
My internet service is Sympatico and they can't help me - told me to uninstall Outlook 2010 and re-install it, but I don't see how that will help. Any one else run into this problem.

Can someone point me in a direction where I might get some help. I tried Outlook books but no help. I can't seem to find an Microsoft site that would be helpful. I need to get it running ASAP.

Thank You

Which version of outlook are you running?

Have a look here Barrie.

Has loads of info.

HowTo-Outlook | Support for Microsoft Office Outlook


Specifically look at this link. http://www.howto-outlook.com/howto/backupandrestore.htm

Steve