I have been using the onboard avance analog device drivers on my Albatron motherboard. I managed to break the analog input jack on the back of my Boston Acoustic Speakers. I installed a Phillips PS605/17 sound card to use my speakers in digital mode. There are no errors in Device Manager but when I check in Control Panel under Sounds & Audio Devices, there is no audio device listed and I therefore have no sound. I disabled the Avance 97 in the BIOS Setup before installing the PCI Sound Card and also had to disable the gameport that is built into the motherboard before I could load the drivers for the Phillips sound card. Otherwise, I would get the BSOD. I took the computer in to a Computer Repair Facility and at least two technicions tried to solve this problem with no success. This included installing a new sound card in a different PCI slot and loading the respective drivers with the same result. If I remove the sound card and try to reactivate the onboard Avance 97 sound. I am able to restore it with no error messages showing in Device Manager but I still have No Audio Device in Control Panel. The PCI slot is good as I can install a different card and load its drivers and it functions just fine. I am at a loss as to what to try next short of formatting the hard drive and starting from square one. I really don't want to even try that as it is a lot of work. My operating system is Windows XP SP2. All help is much appreciated in getting my problem resolved. I presently have the PCI Sound Card installed so that I can use the digital output of the card to drive my speakers.