Monitor setting advice...possibly

[Minerva]

This may be a strange question, but someone might be able to give me a thought or two.

I am experiencing a strange vision problem. Kind of swirly lines appears a part of my vision and often followed by throbbing headache, and feels like sea sick, even though I wasn't playing anything visually heavy. I know you may think this is a medical problem...however.

It only happens when I use my new monitor. 17 inch LCD, with GForce FX 5200, 1024x768, refresh rate of 60Hz.
In my office, I use 17 inch CRT and spent longer hours (but not playing games, obviously!), and have no problem. At home, after about 30 mins, I get this vision.

I am starting to wonder if this is something to do with setting of my monitor, like frequency.

Can anybody help?

[Rookierookie]

Even though you can supposedly live with lower refresh rates on LCDs, I find that the image shimmers if I set it to 60Hz. Try going to 75Hz.

Also, LCDs have a native resolution. If you set the resolution different from the native resolution, the new resolution is emulated, which might lead to your problem. Most 17" LCD today have a native resolution of 1280x1024, but check your monitor's documentation to be sure. After you are at your native resolution, set your refresh rate as high as possible (REMEMBER TO CHECK THE BOX WHICH PREVENTS YOU FROM SELECTING OVERLY HIGH REFRESH RATES!).

[Minerva]

Thank you, rookie.

I have changed them accordingly, and I did not have the problem last night!

Of course, I spent a lot less time in front of PC (if you have suffer for a few days, you tend to be worried), still it was bad before the change.
I'll see how it would be during this weekend.

[giles337]

[QUOTE=Minerva] not playing games, obviously!
[/QUOTE]

Suureee I don't claim to be an expert in such matters, but the most obvious things, appears to be that one monitor is LCD, the other is CRT. Perhaps an LCD monitor works in a different way (aside from the obvious) whcih is causing these troubles.