I just got my Samsung Galaxy S. I did not set in sim card yet. But after a few hours i couldnt close apps - market and internet. After that i saw a movie and some pics. Galery and player stayed OPEN. I wrote an email and send it. Telephone was hot from the back side. I trayed to open player but screen stayed black. Then i wanted to restart telephone with hardver button and after that with the button on the screen. Then everything blocked! I put the battery out and returned it in. Whats the problem? Maybe the movie? Blah. Maybe softwer?