Remote shut down and Firefox

[Ismail ISLEYEN]

I use EDUBUNTU 7.10 and I have three problems with it.

1. What should I do to shut down the clients remotely? The server and 
the clients have been placed on different floors.
2. When I run Firefox on the clients, the colors of the screen are 
distorted; although it looks as if everything is OK about the server and 
the clients. The clients are HP T5525.  
Thank you very much in advance


-- 
Uzm.Ismail ISLEYEN
C.O.M.Ü. Kut. ve Dok. Dai. Bsk.ligi
Elektronik Kaynaklar -- Otomasyon
Tel: (286) 218 0018#1989
isleyen at comu.edu.tr