I might b totally off here (U know I'm not much of a Computer buff) but I think this might have somethin' 2 do with the IRq channels... maybe u have turned the ACPI ON (off??) in order 2 get it running with yer soundcard or something... check that winxp tweek link 2 find out more... or better yet stay put until some1 that know what they r talkin about giv ya some input on this... try the bloke who offered 2 help ya sort the prob out 4 free (used 2 work 4 HP)... can recall his name right now... sorry m8!

Z