I have a KDS x-flat crt model 9b monitor. With the days getting hotter I brought in a honey well fan to help keep my system cool. It's a small fan do I put up to the side of my case and turned it on. Even though the case was between my monitor and fan my monitor would flicker and if I turned it on high it would flicker even more. What am I not getting here? I did have the fan plugged into the same bar as my monitor and then I put the fan on a different plug and it still did it. Honey X 030811 k7S5a Pro rev. 5 XP 2400+ @2250ghz Thoroughbred-B Crucial PC2100 ddr 768 Radeon 9000 64 mb Maxtor 40g (32g) Coolmax "Taurus" 450w PS Asus QT CD/RW Samsung DVD<br

does it flicker if you move the fan further away from the monitor? The fan is likely causing some electromagnetic interference to your monitor. If the fan has a lot of metal, it's possible. You might want to try a fan that is mostly plastic, or try to find a different solution to keeping your PC cooler.

The fan is just about all plastic. When I move it away from the monitor the flickering slows down. It is a strong fan. I think it puts out more air then my ceiling fan does. When it's on high it sounds like a blow dryer. Honey X 030811 k7S5a Pro rev. 5 XP 2400+ @2250ghz Thoroughbred-B Crucial PC2100 ddr 768 Radeon 9000 64 mb Maxtor 40g (32g) Coolmax "Taurus" 450w PS Asus QT CD/RW Samsung DVD<br

You might want to try a different fan. A fan is just an electric motor with blades attached. It can put out an em field, as stated above.

Also if the fan has an electronic speed controller, the circuitry could put waveform distortions into the ac line.

Thanks guys. I put the fan in a place where it is away from things. My monitor doesn't flicker where I have it and I plugged it into an outlet that is not connected to what my computer is. Honey X 030811 k7S5a Pro rev. 5 XP 2400+ @2250ghz Thoroughbred-B Crucial PC2100 ddr 768 Radeon 9000 64 mb Maxtor 40g (32g) Coolmax "Taurus" 450w PS Asus QT CD/RW Samsung DVD<br

I've posted this before. This can be caused by other, high power devices, like a transformer type 14v supply as used for communications equipment. Other causes, the fan, another monitor, or any other high load device. Sometimes a TV can do this. The ONLY solution is move the units apart, or turn one off. Sometimes changing the monitor refresh rate will help, too. Flouresent lamps can also cause interesting problems, because they "strobe" like a timing light.