Comment 4 for bug 162790

I can't believe I hadn't noticed this in other apps - guess that shows I don't use the scroll wheel all that much.

This does indeed occur in pretty much any application so it is NOT a specific firefox issue but rather a far more general problem. Reboots do nothing for me. It is a very consistent and reproducible problem.

I can produce it in Firefox, Evolution, heck even just the desktop, so probably everywhere