I have had a chronic problem rotating models with the middle mouse button. The moment that the entire part wasn't on the screen-the display would freeze. What a PITA it was to constantly go to a full display to unlock the screen.
I had badgered my tech suport at my VAR's to no avail. I was sure it was a SW issue, but they kept blaming the video drivers (some things never change.) Anyway, I finally found the problem and am posting this in case anybody else is having the same problem.
It was the mouse itself. I had some time a couple of weeks ago and was determined to get to the bottom of this. After many dead ends, I went to control panel and opened up the mouse settings. I clicked on the wheel tab and there is a troubleshooter for the wheel in there, and it solved the problem.
Now the interesting part. I applied sp5 of SW2005 over the weekend. Then today, I noticed the same bad stuff happening again with rotating the model. Went back into the Intellipoint troubleshooter and it again solved the problem. Looks like I'll have to do this every time I apply a sp, but at least I know what to do now.
My apologies if this has already been discussed, but I was so happy that I had finally solved this that I had to share it.
jk