VMware Workstation 5.5Features | Documentation | Knowledge Base | Discussion Forums
The Input tab lets you adjust the way that the virtual machine captures control of keyboard and mouse.
Note: The option Grab when cursor enters window allows you to move the mouse pointer back into the virtual machine window easily if you have been working in the virtual machine, then temporarily moved the mouse pointer outside the virtual machine window. The mouse pointer is grabbed only when VMware Workstation has focus (is the active application). Also, if you release the mouse pointer by pressing a hot-key combination Ctrl-Alt by default you must click inside the virtual machine window to make VMware Workstation grab the mouse pointer again.