Flat Panel CRT Monitor

I have recently purchased a Flat Screen CRT Monitor. After connecting the monitor. I can not get straight horizontal lines. I have returned the monitor to the manufactuer thinking it was defective. They sent it back saying that it was tested and functioning properly. I have spent hours adjusting the geometry buttons on the monitor.
Has anyone ran into this problem? I think it might be the video card.
I am running a Radeon 9200 Video Card on Windows Me.

 

Can you clarfy just what the screen is?

You say it's a "flat panel" and a "CRT" monitor. Those 2 descriptors are conflicting.

A "flat panel" means LCD or Plasma, and not CRT (which is anything but a "panel" in format)

A CRT is quite likely to be a "flat screen" type but not a "flat panel"

So, is it LCD, or CRT?

As the technology is entirely different, the possibilites are likewise different.
Assuming its not an LCD flat panel, have you excluded all magnetic devices from the immediate area? Speakers etc.

These can cause deflection anomalies and screen display curvature.

 

Do you have any external speakers near the monitor? Sometimes if the speakers are not shielded, the magnetic field from the magnets in the speakers will play havoc on the monitor. I believe this applies to both CRT and LCD monitors.

 

O.K. its a Flat Screen CRT monitor.
There are no magnetic devices nearby.
Have tried all adjustments on monitor.

 

The2ndRat, this will bump you back to the top for further assistance.