After loading up a music program with several hours of music, after about 1 1/2 to 2 hours the songs start to break up when playing. This happens with mm 7.5, ez creator, and all other programs we've tried. Shutting the program down and restarting does no good as it then starts skipping immediately. However if you reboot the computer it will then again be fine for another 1 1/2 to 2 hours. Have ran bcm diagnostics and all tests pass, scanned for virus and trojans, nothing found, just don't know what else to try. Any ideas. tia.