I am using a PIII 700 on a 810 based motherboard with onboard agp. Suddenly my system refuses to play video cds (aviseq.dat files). I have tried reinstalling win98 and also win 2000 but no go. The win media player 7 gives an error message that a proper set of filters could not be found to render the stream. Other video players also give an error message. The system is running fine otherwise.