I met the same question in Fedora8 ,but finally it is my own fault: I forgot to enable VMCI in the .vmx file.
I truely have done this according to the README when setup the first vm,but after I delete the vm and built up another one , I forget the .vmx file entirely !
Maybe this imformation can not resolve your problem, but I depend on it.
By the way, the kernel in fedora8 is 2.6.23.1-42