Updated to ios 5 and lost data - any tips? | Petro Canada Rates and Plans | Consumer forum

Updated from ios 4 to 5 on a 3GS. Rogers sim from a petro phone. Nokia.

Worked on 4. Usually at 3G speed.

What can I check, change. Is rollback the only option.
iOS 5 update has been hell. Sync problems, blanked all contacts etc.

Come to think of it, it probably wiped out the settings I put in with the. I figuration utility.