Which ESX Server are you running?
Have you executed the following command? If not please.
To configure VMware Tools for your running kernel, run:
/usr/bin/vmware-config-tools.pl
Run the following command to start the tools running in the background during an X server session:
/usr/bin/vmware-toolbox &
Also please confirm whether VMware tools are upgraded/installed properly on your Linux VM.
If you find this post helpful/rectify your problem do not forget to award points
If you find this post helpful/rectify your problem do not forget to award points