Give us some more information, system specs please? and what kinda of motherboard and graphics card?
What kind of ram did you put in?
FIXED problem looked at another foum avised to hoover dust from ram port and replug all connection thenprob on daughters computer was running windows 98 put xp onit worked fine but was slow as it only had 64mb of ram tried to put 128mb in aswell then prob started took ram back out and it still wont start up monitor lights stays orange only goes green when i unplug monitor cable from tower think motherboard is asus cusl2-m needed to ungrade ram to put wireless adaptor in for broadband ram was pc100 128 it had pc100 64 in already