Am running Windows XP Pro with Windows Media 11. The Dell Dimension 8400 computer is working fine except for one thing. When I try to burn a CD I get a message "Media Player encountered a problem while burning file to disc." Slowing speed as suggested doesn't help. I also get error 80040155. I have checked the devices, including the CD-Rom, it is fine. I can play CDs and I can Rip CDs to my hard disk. This problem popped up about two weeks ago when I removed Media Creator from the computer. Have tried "Restore" to different dates without success. Have tried several other fixes without success. The Burn screen seems to recognize my CD-Rom drive, but when I hit burn, I get the error message. Have not gone to regedit yet-next step. Would certainly appreciate some help after all the diagnosing I have done unsuccessfully.