During rehersal last night, my desk op had no audio output from a clip that is supposed to play audio. He later checked with the same result. On a third attempt, the machine played the audio fine, as it has done for weeks...

Any ideas, anyone?

Show opening tonight, grateful for help!

Dual 1.8 ghz G5,10.4.7, 332_h24_pro, x800 xt, g-sata raid, Decklink SP, 4 gig ram.