My latest problem with my A500 is that it has become picky what comes to loading games. For example Skidmarks's track disk 2 crashes while my second A500 loads it fine. It's an original disk without no track errors or such.
My plan is to create one single fully working machine. The one with the difficulties to load certain games have no other flaws. The second A500 has only partly working keyboard and a disk drive that sometimes won't load.
Well I must also sound-proof my working disk drive because its very noisy!