There are half a dozen similar threads over the many years, but I can’t find one where anybody fixed this problem.
Basically, the left-click of the mouse doesn’t work. Especially on inserts (can’t add inserts except in the mixer view, can’t reorder or drag around inserts in any view) and, weirdly, on faders. I can’t drag faders up and down.
I’m just upgrading from 8.5 to 10.5. The install is actually on a new computer, but I installed 8.5 to see if I had the same problem and I don’t. So it’s something in the difference between 8.5 and 10.5, or between my particular installs of both.
I have tried the only things I could think of, like fussing with the mouse driver. I even tried the most basic microsoft mouse to see if that made a difference.
My inclination is to uninstall and reinstall and see if that helps. Any other ideas? Thanks very much.