music skips while perfoming a search

[laddie]

I installed 4.0 on my show laptop, running xp sp3 with ie7 and media player 11. If i perform a search while a song is playing the song will begin to skip and continue to skip until I stop the song. I had to switch to 3.4 to do the show. I loaded 4.1, still does the same thing. I went thru the manual and made sure all the system stuff was set correctly. The program works great until I try to perform a search. Can anyone think of anything I have not done