Nokia :: Semi-big Problem With My N85

ok, so yesterday when i connected my n85 to my laptop for the 1000th time, the theme on my phone automatically changed, i was like weird, but anyways, then i unplug my phone and realize 1. don't have any applications downloaded to my phone like opera mini and other juicy stuff 2. my phone doesn't read ovi maps at all, i click on maps and it doesn't do anything 3. when i try changing the themes, it says corrupted theme 4. when i try to check if my application are still on the memory card, they are shown on my file mgr but not in the menu 5. i tried restarting my phone, same gay junk. 6. but videos are still accessible via the video center, so it reads the videos off the memory cards but nothing else. 7. preset buttons have changed

am i screwed? is my phone busted, what happened? had it for 5 months no problems but now