I have a little problem with idesk, that I use to show icons on my fluxbox desktop. I don't know what happens there and would like to know if it's caused by idesk or whatever.
All the icons are displayed well. Nearly all. The only error appears, when I try to move any icon in the upper left corner. At about 80 pixels from the left and 80 pixels from the top of the screen, there appear black corners over the icon, as if a window with a black corner was there. The corners are not only shown once, but are multiplied when I move the icon in this upper left area. If I move the icon back in the "good" parts of the screen, the corners remain. A "xrefresh" doesn't make any difference, the corners stay.
Any ideas what causes this?
EDIT: I thought a screenshot could be helpful