Hi Tobias,
It turns out my QL has the 'JM' version of the ROM. However, I infer this isn't a problem, since I only see intermittent problems accessing the disk-drive unit.
Thanks again,
George.
Intermittent floppy disk drive problems
Re: Intermittent floppy disk drive problems
Right, that shouldn't be the problem with your problem
ʎɐqǝ ɯoɹɟ ǝq oʇ ƃuᴉoƃ ʇou sᴉ pɹɐoqʎǝʞ ʇxǝu ʎɯ 'ɹɐǝp ɥO