My Pavilion 4453 (WinME)has a rockwell/conextant modem/sound combo card. If I go into Safe Mode and remove the modem, enumerator, and sound devices, Windows will reinstall these items (on restart) and they will work. If I re-start, however, the speakers have a loud feedback-like sound and then the card will not work. I've flashed the BIOS, d'loaded the latest drivers and done everything but chant while waving a dead chicken over this (POS) pc. No advice or actions have made any difference.

Should I give up and replace the card with separate modem and sound cards?