Originally I ran vSphere client from a XP Pro box but I upgraded to Win7Pro recently. I experienced frequent 'blackouts' (mouse and kbd unresponsive) while working in VMs consoles, especially when jumping between consoles on different VMs. VMWare Tools are installed in all VMs.
I thought it might be a windows video card driver problem, so I expected it to be cured when I upgraded to win7pro. But the problem still persists and has even gotten worse.
The mouse pointer is responsive outside of the console window, so I can easily change to Summary, Performance or other tabs of the VM. At some point I saw the following error message in vSphere Client: "Unable to connect to the MKS: Error connecting to /bin/vmx process..." but I don't know if it has something to do with this.
How can I get rid of this annoying freezing of responsitivity in the console screen?