Cntrl-Alt-Delete query

I'm really sorry as this is a really stupid question!

I've just created a new GSX VM...i'm TS-ed onto the GSX Host and viewing the new VM through the console.... but what keys do I press to send a Cntrl-Alt-Delete cmd to the VM!! Cntrl-Alt-Insert doesnt work (i use this in ESX)

Thanks for your help!

E