First of all, thank you very much to the intelligent programmer of this highly versatile program. MC fills almost all of my needs in daily work. Unfortunately, the display of the thumbnails in the thumbnails mode got corrupted overnight. Instead, black squares are shown. I can switch between the symbols view and the thumbnails view, but no thumbnails are shown. In the Windows Explorer and other image software like Irfanview Thumbnails, the thumbnails are correctly displayed. I changed some of the Windows 7 64-bit display styles before (like removing the mouse shadow trail etc.), but did not change the MC settings. Unfortunately, I was in the middle of customizing MC and hate to re-load the standard settings, because that would mean to start from the scratch again. Any idea?