cursor doesn't change correctly
My cursor isn't changing as it should under certain circumstances in Logic. The behavior hasn't been entirely consistent, so it's a bit difficult to describe accurately. For example, when I hover over the bottom right corner of a region in the arrange window and expect to see the region length change cursor, the normal pointer cursor remains. I can click and adjust the region as I would expect, and usually the cursor will change at this point, but not when I just hover over the appropriate spot. Some of the time, the cursor will then remain "stuck" after I finish adjusting the region length. This happens with other tools as well, and not only in hover/context-specific situations. If I hit escape and then select a tool from the pop-up menu, the cursor doesn't always change. Cursors for the pencil, zoom, and marquee tools appear to always work, but all others are inconsistent.
This is a recent install of Logic 9.1.7 on Mountain Lion (a clean install of the OS on a new boot volume), but the problem didn't appear until at least a couple weeks after installation. I can't think of any other changes I made around the time the problem started, but it's certainly possible I'm forgetting something. Does anyone have any idea what's causing the problem? Thanks.
Mac Pro, OS X Mountain Lion (10.8.2), Logic 9.1.1, Logic 7.2.3, Mountain Dew