cold cathod flickering?

[Monster ninja]

a cold cathode inside my case is flickering, every 1/2mids or so(at random) however the ones under my desk are fine? whats going on ?

 

[Predicament]

You should start with checking to make sure that the power cable to CC tube is tight

 

[Monster ninja]

yeah its tight

 

[RJC]

The lamp may be on it's way out.

 

[Monster ninja]

ok, thanks guys