Artificer wrote:The Q68 which I have has a PS2 mouse connection but I found that a modern PS2 mouse did not work with it and am using an old USB mouse from Tesco with a USB to serial adapter which works perfectly.
Just for clarification: In principle, all PS/2 mice or USB+PS/2 combo mice, with or without wheel, old or new, should work with the Q68. Problems are very rare.
One case turned out a half-defective mouse, which worked on one PC but failed on others. The Q68 starts up much faster than a PC, so in another case, a mouse powered up too slow.
But PS/2 mice are cheap and easy to get. So deep investigations are probably not worth the time.
On original QLs, I do not use mice, just on Q60 and Q68. I simply can not type well on on the QL keyboard. Consequently I spend so little time that cursor keys are sufficient.