This was a very annoying issue that was recently occuring in both Inventor 2008 and 2011. When a dialog window would open within Inventor, it would appear at first as normal but after a few seconds it would vanish and only reappear it pieces when I would mouse over it.
After several graphic card driver updates and even a swap out to my old graphics card, the issue persisted.
So after pulling my hair out I did what I should have done from the start. I posted to the Autodesk Inventor Forum on Autodesk.com.
You can read the full thread here: Discussion.
Thankyou bloated Logitech mouse driver for making my life hell.
Thankyou iDS! (whoever you are) for solving the issue for me.
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