I have the exact same problem and it started today morning. I have not rooted my phone, it is all the stock kernel and software and ROM. But I did notice that there was a message saying that a software update had been received. I do not remember the version number but it was something like 3.xx.605 something. Ever since then, my google voice app and many other apps crash a few seconds after opening. Many of preferences have been reset and call history has been wiped clean, although the contacts are still there. All the apps that were on the SDcard just show the generic icon, and settings->applications->manage->SD card tab shows zero apps. My current S/W info is Android ver. 2.2 Baseband ver. 2.15.00.07.28 Kernel ver. 220.127.116.11-g9a2fc16htc-kernel@u18000-Build-149 #1 Build number 3.26.605.1 CL264707 release-keys PRL ver. 52297 Any ideas on how to fix it. I dont have any backup software mentioned earlier in the posts installed on my DINC.