Hi, I bought a dell dimension 3000 desktop a couple of months ago. This is the hardware information of my computer: Windows Xp Pro Edition, Intel Celeron 2.66 GHz, 80 gb hard drive, 512 mb ram, a cd - rom (set to master), a dvd - burner (set to slave), onboard video card and an onboard sound card Analog Devices ADI 198x Integrated Audio. This is my problem: I installed Windows Xp Pro on this system a couple of days ago. A clean install. I installed the drives in the proper way. I can listen to the internet radio without problem, but when I want to listen to music of my cd rom or dvd burner, I can hear a cracking sound in the music. What could be the problem? Before I had Windows XP Home edition installed with both drives, and the sound was perfect. Westly Montroos __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml