[Xloria]

The graal client usually has nothing to do with a firewall and or a direct x version. Graal running problems usually are associated with internet services. However I am not familar with the firewall anti-virus security programs it is very possible that it can be the firewall effecting the port connecting to the graal client and the remote computer would be unable to listen to the connections through the users computer.

The Listed Anti-Virus Programs Do Not Effect Graal:
Nortan Anti-Virus* & higher
McAfee Anti-Virus*

Globals who could help you in trouble shooting areas are Angel,unixmad,Stafan and if problem persists contact computer manufacturer or see computer manual that the cpu came with.