Hi all, I'm in a big fix! My Galaxy S2 was working perfectly fine until a few hours ago. When I opened the FB app it force closed and assuming it was an error I opened it again but it kept force closing. I then opened the Gmail app and to my surprise that too kept force closing on repeated attempts. I then restarted the phone and too my surprise all my app including Google Play Store, Gmail etc (except for the Samsung apps) were shown in grey and on clicking a toast message pops up saying the application is not installed!! I don't have the slightest clue what happened! Has anyone faced this problem before? Any ideas on how I could fix this? Kindly help! Thanks!