Windows Mobile 6 introduced scroll bars to some core OS applications - in case anyone of you feels like getting rid of them, use the following registry keys:

Go to HKLM/System/GWE and change the following values

cxHScr=0
cxVScr=0
cyHScr=0
cyVScr=0

In case you don’t want to totally remove the scroll bars, but thin them out a bit, you can set these values:

cxVScr=3 (original 6)
cyHScr=3 (original 6)

via allShadow.com