ubuntu

I haven't figured out what's the problem with the display.
It makes me feel really dizzy.
I've tried several methods, but in vain. Moreover, it's getting worse.
For example, I re-installed the NVIDIA driver, both graphically and manually with more than one version. I changed the xorg.conf, it didn't work as well.
I decided to reinstall. Hope it can fix all the problem.

Operation System: ubumtu 9.10
video card: GeForce 8400 GS
monitor: CHIMEI 22QA

While I was going to post the picture of the screen. I used the screen shot. It looks like this.

the weather is unusual or it is the way it should be

It was hot as summer in the morning and cold as winter in the afternoon. While we started wearing short-sleeved shirt, it became nine degree Celsius. It was dry and cold. Suddenly, it thundered rained heavily and intermittently. Today, it is very humid.