>Maybe this MSKB article can help:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q132668It happened again tonight but it was related to a major change in my Matrox Millenimum P750 when I uninstalled everything and installed them again. So, I had to readjust them manually one by one.
I will however take a look at that link. Thanks