Some of the newest Linux distributions use Xorg 1.4, and the new evdev driver manages all devices, including keyboards. The evdev driver causes the keyboard to send different key codes. For example, the down arrow is key code 116, which other drivers understand to be Win+R. Consequently, keyboard mapping problems occur in all guest operating systems.
Solution - http://kb.vmware.com/selfservice/viewContent.do?externalId=1007439&sliceId=1