sampa64, Thank you for using the Dell Community Forum. Remove and reinstall the sound card drivers to see if that will resolve the issues you are having with the system.
Hi, my Dell Dimension 5150/e510 with Windows Xp Pro  has lately come up with more problems. I will be working on the machine and it will all of a sudden reboot with no errors, well no boot up errors, it does say after it reboots, "The system has recoverd from a serious error." I think it is a IDT SigmaTel driver causing the problem, because it also says "IDT Systray has encoutered a problem and needs to close" Any help would be appericated. Sam 
Reboot