If you want to post your specs, click on 'edit' next to profile on the upper left of the screen after you log in.
When your control panel comes up, "system specs" is the 3rd one down the list - add your details there.
Since you did mention that you're using XP, in the "\WINDOWS\Minidump" directory, there are small files with the "dmo" extension. If you can attach at least 5 of them on your next reply, it should help clarify the problem.