Thanks!
1. in bios there is "onboard equipment",
containing "HD audio controller active": that should be deactivated?
2. in WinXP Pro i see following entry - look screenshot (for sure i translate it in english as good as i'm able to

):
Onboard is realtek, for sure no CREATIVE product (so i should let the creative controller untouched

? - so far i didn't install anything of soundcard-cd):
- audiocodecs
- Creative Audio PCI (ES1371 ...)(WDM)
- Legacy-Audiodriver
- Legacy-Videorecording-instrument (tool?)
- Media-control-instrument (tool?)
- Videocodecs
(to get upload accepted, i had to pack the word-attachment in .rar)
I don't want to de-install to much!
Many thanks!
Worf
PS: In the top of the case is a connector to mp3-player etc.; running even without starting the pc, i let that controller in bios active i think

!?