QUOTE(cardboardbox @ Dec 1 2006, 11:13 PM)
what is the best way to test the xbox to see if its going to have one of the common errors? I downloaded the Lost Planet demo and played around with it... so far no probs.
Stress testing is the only real way...
Get Gears of War and/or Dead Rising. Both of those games are pretty intensive on the console. If you can play them for ages, with no glitches or anything, it is likely that it will be good, but by no means certain. Oh, and download the updates (as i'm sure you have anyway).
Having said this, mine acted up randomly, both of them did actually.