I have my Galaxy Player 4.0 for a month now, but recently I've been experiencing this Force Close problem. Few days ago I downloaded Angry Birds from the Market, in the middle of the download process a pop-up window suddenly appeared. There was a Force Close button but it can't be clicked. It all happened so fast I didn't have time to read the whole warning. But the window said something about a file or whatever crashing. After the window disappeared the screen turned black, but not fully turned on. So I removed the battery and put it back again. When I turned on my player, every setting was changed back to default! I will state here the changes that happened > the wallpaper, the icons, the display and the sounds were returned to like when I first bought it. > Flight Mode and Silent Mode disappeared from the Device Options (when you press the Lock/Unlock button, only the Power Button appears) > I can't lock my player. I tried to set a password but every time I do nothing happens. I didn't know what to do at first, so I made a research and found a solution; hard reset the player. It was so hard for me because I had a lot of files and apps already. When I did that things went back to normal But today, it happened again. While my friends were watching a video on my player, they said they saw a window and my player sort-of "crashed". I don't know why it happened again. Any ideas? I don't know what to do anymore. I can't let it happen again on my player. I tried researching but I couldn't find anything. Please help me. I'm using Froyo, firmware version 2.2.2, if that would help. Thanks in advance!!