[joek]

it would probably be better to get a new computer, if it's old enough that it only has 256 ram, it probably will have some other issues as well. most cad programs require a decent computer ( at least 1 gig ram, 80 gig HD or better, and a nice graphics card). your cpu probably isn't up to par either, so you would be looking at almost a new computer as-is. if your going to be doing a lot of cad work, get a basic gaming computer, but if it's just occasional use, almost any new/ slightly used computer would work. if your goin to get a used one, get one that is less than 5 years old.