@MrsBeanbag
My A1200+1260 had similar problem many years ago circa 2000.
I traced the problem to a loose fitting connection of the Apollo 1260 to the A1200 MB. The A1260 was at a slight angle due to gravitational attraction of a nearby planet (Earth).
Solution: Duct Tape! Once I taped it in such a way as to support the board in a perfectly straight line I never had a problem again. Its been 12 years and I never even had to replace the tape or or anything.
yep
the apollo 1240 and 1260 connectors are very buggy and sometimes you can have problems in days with humidity etc
I had a 1240/40 and give me tons of headaches cause it does not feet well on the A1200 desktop and the trapdoor can't be closed
