@MamePPCA1
Just to take something off of your list of worries.
ScummVM (in it's plugins incarnation) is known to crash for some engines on the second or third run (not sure which yet, or if it's the engine count, but it won't crash with some engines in place yadda, yadda).
If there ever will be a proper way of debugging things, i can maybe corner it, but for now it's a hit and miss, sorry.
back to the topic
Do the crashes happen when you try to run apps *during* the download?
Or do they happen while you are away and Odyssey should happily suck on the interwebs tit? (Heh, didn't he do that with Circe earlier in history too?)
If the latter, then try to shut down any running screensaver (especially "ScreenBlanker" - it's known to do evil things while you are away - just like Windows)
If you already have a list of programs crashing, try to test them seperately.
It doesn't always have to be a hardware problem.
Example: If you download something *and* access the web again with aother program (YAM) they both might interfere in a way and drag themselves down, just a thought.
Anyway, please elaborate "random".