So i used pwnagetool2.1 to create custom firmware for iphoneOS2.1 just like i had done with all the previous versions. everything went smooth, the activation went smooth...and the phone works flawless.

first time i activated it backed up and synched with no errors.

now....when i connect my iphone...itunes goes right to synching and then at the end of the synch..it gives me an error saying synching failed because the iphone disconnected...when it hasnt. iphone is still in sidebar of itunes. and if i check the iphone...all the new apps and songs have in fact been added and work fine.

why am i getting this error...and why isnt it backing up?