There are quite some threads active describing various Aero issues. Here's mine and it seems to be a bit different:
I have an iMac 27 Core i7 with an ATI Radeon HD 4850 (512MB) running Lion 10.7.1
After I've upgraded to Fusion 4.01, Aero animations mostly do not work. Aero Peek (hovering over a thumbnail) or minimizing/restoring apps to the taskbar, etc.
To be honest, this alone wouldn't be a big deal and I could live without that (even when vmware is promoting Fusion 4 to be much faster, nicer, blabla).
The problem is, that every time these animations kick in, the OS stalls for a second or two, sometimes even 10 or 20 seconds. Even OS X (switching to a different space) doesn't respond during this time. IE rendering or the Outlook mail preview (which is basically IE rendering) is also affected.
It happens every two or three hours, that the video driver crashes completely and needs to restart (windows pops up a little bubble telling me that the driver stopped working). Aero is disabled briefly and re-enabled again.
On two occasions, Fusion crashed after a hang like this (the error report was sent to vmware) and it might be a coincidence but it did crash after I switched to a different OS X user and back again. Two other times OS X itself crashed after such an Aero hang.
Needless to say, that this all worked great with Fusion 3 before and I understand that vmware did a lot of code rewrite in the 3d backend but this release is far from any quality standards you might be used from vmware. If you haven't upgraded yet, don't upgrade!
If vmware cannot fix this issue soon, I might switch to Parallels.
Anyone else having issues like this and maybe a way to make Fusion more stable?
