This has been giving me trouble for a long time and I wanted to see if anyone has found any sort of a solution to it. Sometimes when I have been using my Powerbook with an external display, and then I disconnect the external display, my mouse pointer will disappear. It's still there, it's just invisible. I can move it around and see the dock magnify when I get to the bottom of the screen, and see buttons highlight etc. Anyway, the only way to get it back is to either plug the external monitor back in, or even just plug the mini-DVI to VGA adapter in without the external monitor connected. However, as soon as I disconnect it again, the mouse pointer turns invisible again. Of course if I restart the problem goes away temporarily too. I realize this is most likely a real bug that Apple should fix, however I'm wondering if anyone has found a reliable way to get the cursor to come back without restarting or plugging the second display back in again. I've tried logging out and back in and that doesn't work, nor does changing screen resolutions. Any ideas?