2 things:
It would be nice if you could change tabs in the find dialog as you would with the editor - e.g., ctrl-tab & ctrl-shift-tab to flip between find, replace, find in files.
Also, it seems if I switch editor tabs using ctrl-tab, my entire screen seems to do a refresh. If I change tabs by clicking on the tab with my mouse, the full screen refresh doesn't occur. The switch is much smoother. Odd!