[nylaw]

This just happened to me last night and I recovered everything easily. On your PC go to Outlook and look in the "Deleted" items folder. All your contacts should be there as well as any appointments that were deleted. Highlight all contacts and copy them to the contact folder and do the same with appointments. I used the copy function rather then the move function as it happened again after fixing it.

After I got everything working I added PIM Backup from Dotfred over on XDA. I then backed everything up so I never have to worry again. Good luck and let us know how you made out.