I have another 256 MB stick I could put in, but I'm a bit wary of that one as the last time I put it in my computer it crashed a lot more often than it does now. It's - like almost everything in my computer - a second-hand component, and it was stored very improperly (in a plastic bag with several other components, with no kind protection), so my 'personal computer specialist' said that quite possibly it had become damaged while in storage, and could be the cause of my system's instability.

Still, I suppose I could put it back in just for a day or two and see how it goes. Can't really hurt, after all. If it keeps crashing my system I'll just take it out again...

(Did I mention my processor's also damaged? It's a bit of a miracle that it works at all: one of the corners is chipped!)