Last night I found out what was making the computer fan scream every time the antivirus scanned. Removing the thick layer of dust over the grille cured it.
Then I had one of those Really Good Ideas. You know, the ones that start with 'This will be brilliant' and later turn into 'What the hell was I thinking?' It seemed like a good idea to disassemble the computer and de-dustify it completely. I mean, the thing is seven years old and has been quietly cleaning the house by sucking all the dust into itself.
I have it all back together now and it seems to be working okay. I had forgotten how many wires were plugged into the back of it and how few of them could be plugged in before shoving it back into the restricted space it lives in. I freely admit to swearing like a toothy clown.
Right. Out with the booze, time to read the papers. That's something best not done sober.