Konqueror crashes frequently, Kmozilla doesn't work.

Hi, I upgraded the KDE installation in SuSE 8.0 to KDE 3.1.1, because Konqueror crashes pretty frequent, but it didn't fix the problem. Does anybody else have frequent crashes? Also I can't get KMozilla to work. When I enable it in Konqueror it puts the status bar in the middle, but doesn't do anything. Thank you Sebastian