When logging off the following note appears: "explorer.exe This program is\npreventing you from logging off. The instruction at 0x02290f90 referenced\nmemory at 0x00000000. The memory could not be written. Click on OK to\nterminate the program." When I do that, I can log off (well, it's really my\ndaughter's account only that does this so far).\n\nWhy is this happening and how can it be remedied? I've looked elsewhere and\nfound no clues to solving it. Thanks!