Hi dcattley, have u tried banckm suggestion? Did it work for you? I've already given up on VMWare player and reinstalled the guest system on ESXi 5 so cannot give the feedback. Will be great to know that by adding the single line 'mks.rateLimitedWindowMaxFPS = 1000' can solve this problem. Thanks.
rgds
Quoting banackm
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For the people hitting the NOT_IMPLEMENTED swbMessage.c:615, could you try adding the following line in your vmx or config file:
mks.rateLimitedWindowMaxFPS = 1000
We've had difficulty reproducing this internally, but please let us know whether the option helps, and it might help us diagnose the problem.