Thanks, I did another reset and this time left out the amazon app. I think its the apps from amazon that are causing the problem. I will give another 24 hours and hopefully the problem won't come back.I think maybe if you flashed 2.3.4 again it would clear anything that might be messing up there are threads on how to flash gingerbread without messing up the device you might have to try that.
Try clearing any cache and data from contacts app on settings and see if it helps out....idk what else to say but if I find anything useful ill post again