Monitor troubles

[bluescreenNoob]

For the last couple months my screen has been very "wavy, littery, flickery." Thats the best way I can describe it. I was just wondering if this means my monitor is dying (it is about 5 years old) or could I have a power problem? I have a 300w power supply, I know I should have atleast 350w with my system but me and my friend thought it would'nt be a problem. I have 1xHD 2xCDROM 1xFlOPPY and 1x128mb video card.

 

[bluescreenNoob]

Oh btw it doesn't do it all the time, it seems to be pretty random. But once it starts screwing up it doesn't usually stop till I turn the power off and let it sit for a while. Sometimes when I turn my pc on the "flickering" starts after a couple minutes, sometimes it runs fine for hours.

 

[Nodsu]

You can easily eliminate the power supply problem by using a normal power cord for the monitor by passing the PC power supply.

My monitor was getting all blurry occasionally too. It stopped doing it all by itself so I blamed it on the power company supplying not up-to-spec power.

Does your monitor gave a "degauss" button? Does it help?
Is it wavy etc. when pointed in all directions?
Do you have sources of high EMI near your monitor? (Big speakers etc.)