Screen Flashing on start up

[11alex11]

when I turn on my screen after a while that it been off it flashed for several times and then everything is fine. what could be the problem?

 

[Maziar]

Please post your system specs

 

[11alex11]

P4 2.4Mhz
Geforce 6200 256MB
1.5GB DDR
sower supply 350W

 

[wa1]

make sure the cable is properly connected and if u have another cable u can try that...