i had the same problem except i got a wallpaper on my phone but it would only show up if my phone was idle (no i didn't get a screensaver), i don't think they work because the way the clock is, on most phones the clock is on the bottom middle of the phone and has a little bit bigger screen so it can have a wallpaper.i don't think 8600's can

your phone probably can't handle the picture, the picture might be really high resolution

Here is the problem, i have purchased and downloaded pictures from GetITNow on the phone, but when i try to go to setting and put the wallpaper on my phone...it does a "wait a moment" for a really long time then goes to a blank screen. What am i doing wrong..Can anyone help. Thanks in advance!!