Hey Quin, did you ever test "hover text" on mac sys prefs?
You hold the command key and it "shows you more text that can be seen" (under the cursor)
I have it activated, and it's sometimes VERY useful, but it can get "crazy" while using some progs with tooltips (including PB); you generally just need to press Command (once) to "squish the bug"…
Anyway I was just wondering if (de?)activating that could help with the issues you said u were having with macos…