Sounds as if the Graphics driver is having trouble interacting with the VMware Workstation system. Try switching on / off the 3D mode in the VMWare settings.
Could it be a Flash Player issue. Try installing the latest from Adobe, if not already done.
Do you have VMware Guest Tools for Mac OS X installed?
If not, I'm not sure if there is any directly available for VMware Workstation running a Mac OS X system but its worth checking with vmware.com.
There are some that you could try via
http://isohunt.com/torrent_details/375589661/?tab=summary
Failing that you could consider using Oracle VirtualBox (
https://www.virtualbox.org ) instead of VMWare. I have OS X Lion running ok in VirtualBox. There is also an option in VirtualBox that allows for importing of VMWare virtual disk environments.
Also some good info here for installing OS X Lion in VirtualBox:
http://www.macbreaker.com/2012/07/mountain-lion-virtualbox.html