In other news, I am not currently using IM-programmes on my computer, in an effort to reduce crash frequencies. I am planning on doing a repartition+reinstall in the near future, and see about getting my drivers straight, and hopefully making the computer less prone to crashing. I also ran Memtest86 today to test my RAM, wondering whether there might be faults in it. In one of the tests (Test 5 [Block move, 64 moves]) it reported 81341 errors in the first pass, and 73653 in the second - I am thinking this might have to do with the programme getting confused and attempting to test memory-addresses that don't exist; the documentation mentioned that possibility. None of the other specific tests got any errors, and those errors shown would account for 511.5MB out of my single 512MB stick.
Edited to add: Have also been fiddling with the bits and pieces of the machine - some weeks ago I switched case (as general advise - avoid Q-Tec brand cabinets, and if you insist on getting one anyway, get some other power-supply), and today I put in a new harddrive, a Firewire controller (for an external harddrive which will get here eventually), and some wheels for the case (it is large and heavy). I didn't get to install the new fans, sadly - the supplier included short screws (about 9mm or 1/3 inch long), when I clearly need screws a bit longer than 25mm/1 inch. Hmph. Will have to see what my father has.