Is this a driver problem ?

[mac]

Hi All,
Is this a driver problem ?
If so, is it the Graphics card driver, or
the Monitors driver ?

And...
How do I know which driver to download from this site,
when there's more than one listed, for my OS + Graphics card ?

Here's the problem:
If I set my screen resolution to its lowest setting: 800 x 600
Then although the display is OK, it's not as sharp as it could be.

And if I set my screen resolution to some higher setting, say: 1024 x 768
Then the display seems much sharper.

Windows XL
Radeon 9250 Graphics card
Medion Monitor

Thanks

[tAB]

Hello
you need to download both drivers - for graphics card and Monitor
if there's more then one driver then you need to download the lastest version

and use proper resolution for your monitor, manufacturers usually give some info on proper display settings for their monitors