In my system, the monitor starts to blink in a irregular interval of time after being powered on for 2/3 hours.Can't find the

[jyotishmoy]

Please give me a solution.My system is of Windows XP,

 

[thagneill]

...sir jyotishmoy, maybe your problem is on monitor itself or software for display output. try reinstall graphics software for display maybe it well help for a while