Hello! I would like to point out that I am a forum newbie, who is just beginning to develope a strong interest in computers. My knowledge concerning hardware isn't enough to solve this problem. I really hope somebody can help me out and that I posted this question in the right forum (I am assuming this is a hardware problem and not a driver problem). As for the actual problem: The onboard sound of my Asus P5GPL-X mobo won't work. I understand this is a recurring problem with Asus mobo's, but previous threads on this topic have never been concluded. Here is the URL of a previous thread on this topic: https://www.techspot.com/vb/topic43386.html I have exactly the same problem a smentioned in the above thread and I have also received the same error messages. "What do you mean, my hardware isn't supported?" Also, when I insert the cd-rom delivered along with the mobo, the autodrive kicks in and then tells me my operating system isn't supported. Here are my system specifics: Operating system: Windows XP Professional MCE SP2 (I am considering switching to merely WinXP Professional SP2) Motherboard: ASUS P5GPL-X CPU: Intel Pentium 4 3 ghz RAM: 1 gb DDR-SDRAM Graphics card: Nvidia Geforce 6200 TurboCache HDD: Maxtor 6L300S0 (279 gb) CD-ROM/DVD : HL-DT-ST DVDRAM GSA-4167B I hope somebody can offer some advice.