It has NOTHING to do with any specifc application.
I get stuck and disappearing cursors at least once an hour while working in any number of applications. (Mac OS 10.7.5) The only fix seems to be move the cursor around a lot and click click click click until it comes back.
This issue was NOT present in 10.6.8. And if I booot to 10.6 the issue goes away. 10.7.5 safe boot does not remove the issue eliminating the "third party conflict" idea entriely. Oh how I wish I could stick to 10.6.8. None of the more recent OS versions have been solid. NONE of them.
This is a HORRIBLE issue in terms of productivity. It's like fighting with the system. Come on Apple, what are you folks doing there?
FIX IT PLEASE.
And while I'm at it.. why is the Copy/Trash popup treated like a full window? It grabs window fucus away from what you may be working on. HORRIBLE OS issue. Seriously Apple, take a step back and build a solid OS, you haven't since 10.6. Do you REALLY think people need Maps on a Mac? Seriously? You're wasting time on pointless "features" and forgertting about the stability which built your customer base.