I think it may actually have been a PRAM issue. For the past few weeks it’s been working perfectly, without my ever having had time to do anything to it. It probably helps that this board had next to no cap goo on it to begin with; the recapping was largely preëmptive maintenance. (By all accounts, if you wait until a Q840av dies it usually is then too late.)

I may have identified a minor issue relating to the caps, or not. The microphone (these machines use the PlainTalk variety, with the extra-long plug to supply power) is extremely insensitive, producing very, very faint audio even when shouted into. I’m not sure whether my mic has given up the ghost or one of the caps just didn’t “take.” Anyone got any clue which cap I should be looking at to see?