Well the apps do not uninstall, but they disappear and I have to keep putting them back on my home screen. Was also doing it when I connected the phone to my computer via USB and read that was because my apps were on my SD card, so I moved them back to the phone. Thats kinda annoying, but I can deal with it, but would like to fix them from disappearing after I do an update. My wifes phone is doing the same thing, so I think it is a Droid X or Gingerbread issue?