I was working on repairing a CRT for my IIgs today, and was using the video patterns on the diagnostic disk. Once I was satisfied with the monitor, I figured why not run the whole suite of tests for grins.
Everything passed, except the ADB mouse test. It just says it failed and to refer to the service procedures. Except if I boot up GSOS, the mouse works perfectly fine. The keyboard passes it's test no problem.
Does anyone by chance know what exactly it's trying to test? And more importantly, why it's failing a mouse that is infact working?