I just got a MAC G5 Dual 2.8 running OS X 10.5 very nice with a Cinema Display HD 30" and a studio display 23". I can connect both monitors in the same card ATI Radeon 9600 Pro to do dual monitor. The only problem I have is one of the monitors it always looks darker than the other. Is there any application or software that I can use to manage this better?

Please advice