dvd playing problem...

[themis_t]

hello guys,i don't know how this happened but my creative playcenter started playing all my mp3 files on double speed,i tried unistalling it and install it again but the problem was still there..this wasn't a great mess for me because i used winamp istead..at the beggining the problem was located only in tha programm but yestarday,when i tried to watch a dvd movie on my computer i saw that my dvd playing programm (powed dvd) had the same problem..the speed it had as 1x was the double og the normal speed...i thought that this could be a hardware problem so i tried to watch a dvd movie which was stored in my HDD..but the problem was there again..as for today,i realized that this is happening to all the players i have for multimedia files appart from winamp...do you have any idea why this is happening?is this some kind of virus??
thanx in advance,themis_t