I've been experiencing some random crashes over a previously fine XP box while playing World of Warcraft. I thought something was up, since these crashes started happening recently after I cleaned/re-applyed AC5 to my 6800GT AGP. (Lowered Temps from 110C to 55C since dust was completely blocking airflow) Now today, when I tried to watch a WMV stream (Canucks.com), there were no sound. I made sure that channels are unmuted and speakers are on. the nForce audio mixer was showing the equalizer as playing audio. (Bouncing equalizers). I realized that there were no sound coming from anything. Video/audio/system sound/line-in - I double made sure all the cables worked with the XBOX360. - Made sure it wasn't the audio cable by plugging in a headset directly into the speaker jack on onboard audio. - Tried the audio in WinXP first, then in Linux. No sound, despite all settings suggesting otherwise. Can I safely assume that my onboard sound chip is busted? I didn't make any hardware/BIOS changes. the AC97 audio is enabled still like before. Device manager is showing that the hardware is working fine. What gives?