I have a really strrange problem - I bought 5-6 copies of two games which you need to CLOAD to run, and they all fail.
Tried a 1010 and a XC12, no difference
Tried both sides of all tapes, no difference
Tried a different 800XL, all the tapes work.
The strange thing is the 800XL with problems will happily load & run anything which boots with START&OPTION keys to load, over 100 cassettes work this way just fine - but anything using CLOAD fails. For example European Countries & Capitals will throw various errors, occasionally it will try to draw the Atari logo and hang after a few lines or crash to a prompt on all copies of the game on both tape decks, while this works fine on the other 800XL.
Can anyone suggest why that might be the case? Only difference between them is one has a UAV fitted. I've run ram/rom tests - all pass, but could it be something like a buggy basic rom causing this?