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I was having trouble with repaints of the screen in the IDE, and the FAQ suggested turning animated mouse pointers off. Since I'm a self-respecting proggie who doesn't use animated pointers ;-) I looked for similar solutions and found that disabling the pointer shadow can also fix the problem.
Thanks for the note - fixed. I've added some extra notes to the FAQ in question. This will not show up on netbeans.org for a while since we are moving the whole FAQ infrastructure to another server, but it is in the DB and will show up once things are back to normal. Thanks again.