Ask about Xvnc and gam_server !

Hi all,

My OS is:

   Red Hat Enterprise Linux AS release 4 (Nahant Update 5) 2.6.9 55.ELsmp (64-bit)

   Hardware Platform: x86_64

   Number of CPUs: 8

   When I use top command to list processes in OS, I see COMMAND column has some commands : Xvnc, gam_server. They allways is 98% - 100% CPU.

   I want know Xvnc is mean  VNCServer ?? And how I can stop it (I tried kill some vncserver process by -kill:ID) but Xvnc still exist when I use top command. And, what is gam_server ?

   Thanks.