Mike: I've seen this, too. I don't know whether to blame LabVIEW, FireFox, or Windows. The problem seems to come and go. Does it work for you in LabVIEW 8.0?
Jeffrey: That's a great idea. Those error clusters take up a lot of valuable space. It might take a =bit of work to exclude these controls, since I am just delegating the task of generating the input/output control/indicator documentation to some built-in functions.