You need a legit Commodore 1351 mouse. There is also the micromys or equivalent, ps/2 or usb to De-9.
I learned that after buying an amiga mouse (didnt have the y problem, just didnt work period lol) and had a little mouse test program tell me it was an amiga mouse.
Then I bought two different versions of one of those Tom USB mouse/joystick adapters. Tried a dozen different usb mice, some wouldnt budge, some would have that no y axis problem.
Then finally I bought what was claimed to be a new old stock 1351 mouse. Fantastic shape, although it seemed to have been opened and taken out before I had my hands on it. No y axis, just like some of the usb adapted ones I tried.
So now I'm looking at the C64 machine itself. Well, when I get around to it. It has to get in line.
It is a defective CIA chip.
I have an older rev board C64 that I could swap that chip from, assuming they're interchangeable between revs. Will have to dig into those details. Thanks for the suggestion.
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