Was having the same issue (bottom half of the screen would flicker black seemingly at random while in full screen w native 1440x900 resolution) and tried:
- Disabling hardware acceleration
- Disabling MouseShadow within Win7
No luck
I was able to get it to go away by going into the OSX Accessibility settings and moving the mouse pointer back to the default size. Once I did that, I reenabled the gfx acceleration [didn't check the Retina option since it isn't applicable] and then booted the VM - all is well now
This is on the new 2013Haswell 13" w Fusion5[most current update available] and Win7ProX64 fully patched w VMwareTools installed on the guest O/S. 2proc cores and 4GB allocated to the VM
If this doesn't work for you.. a user of mine w the 3rdgen MacAir running the lastest Fusion5 offerring had an odd issue a month back where a black box would flicker around his mouse
We were able to resolve the issue by going into the VM file from the OSX side and utilizing this VMware KB: VMware KB: Black square popup appears in a VMware Fusion virtual machine
On a completely separate note - the display on my 2ndgen Air looks a lot better than my BRAND NEW Air. Put them side by side and everything just looks better on the 2ndgen [mine came w the samsung display] =(