Can't return from Cingular ROM to AT&T ROM

[Guest svetter]

I backed up my AT&T ROM some time ago, and then played around with the Cingular ROM some. Now I wish to return it to my AT&T ROM that I created before.

However, whenever I try to restore my AT&T ROM I get a checksum error (I'm using SD card reader/writer method). My Cingular ROM(s) work just fine.

Has anybody had a problem going from a Cingular ROM to an AT&T ROM?

Also, in case my backup is bad, could somebody please PM me with a working AT&T ROM backup?

Thanks.