I'm providing system info first, problem descr. last.
Info about PC, OS
PowerSpec 1415 (apparently discontinued; similar to 1405 except for higher RAM and CD drive) dsaAMD Sempron[tm], 2200+1.50 GHz, 736 MB RAM
OS: Windows XP Pro
System Mfr: VIA Technologies, inc.
System Model: KM266a8235
System Type: X86-based PC
C-Media AC97 Audio Device (probably Integrated AC97 SoundBlaster Compatible Audio Chipset)
Legacy Audio Drivers
Media Control Devices: ROOT\MEDIA\MS_MMCI
directX 9.0 installed
Originally loaded with Linspire; user group helpers cleaned hard drive, installed Windows XP Pro, SP2. Since there were yellow ??s in Audio, they downloaded some drivers, not sure which. Have been reading your posts and speculate that there might be a conflict between MS and chip drivers. You be the judge.