Hi Steve,
Just another update from my testing.
I performed another clean install of OSX 10.8.3 and then installed the latest Fusion 5.0.3 on 2 of my test mac’s…
I can now say with extreme confidence that all of my issues (except for one video artifact that has been reported by other users) in Fusion 5 are definitely related to enabling/using Shared Folders. With Shared Folders disabled, I can re-enable real-time scanning in Windows Defender, use File Explorer, etc., without experiencing any of the intermittent lock-ups or slowdowns that I have seen in the past.
I have now tested this way for several days…and have never gone this long without an issue on my these systems. Unfortunately, Shared Folders are a feature I have used extensively in the past, so I am still running my production VM’s in Fusion 4.1.4, where Shared Folders work just fine.
I think that Shared Folders are almost certainly the common thread for users reporting this issue with Fusion 5.
If I can be of any assistance, for testing, please let me know. I sure would like to get this resolved so I can move my production ahead to Fusion 5.
Thanks for your help...
Dr G