[suse kde3] mouse cannot select/click inside window
since this afternoon, my mouse cannot click on anything inside a window. selecting, dragging or resizing the entire window is no problem, but nothing inside the window can be reached, including menu-items, links, buttons, etc.
this happened on SuSE 8.0, KDE 3.1
it has worked for about a year, and I haven't changed anything recently. in windows XP my mouse works without probs.
what could be wrong?