mc8569

I just bought a small tv monitor, 26", that takes s vid, rgb, hdmi, all that. but i hooked up rgb to the monitor, and running from an ati radeon x1200, using their designated Catalyst Control Center, it would not let me use a higher resoltuion than 1360x768, there is also a 1280x1024 resolution. there are a few, and i mean a few, more, but they are all lower resolutions than that. i was eventually able to force it to allow me to use 1400x1050 and 1920x1080, by unchecking the box that hid "resolutions that the monitor could not display". but even still, these resolutions are horrible, the 1920x1080 is unstable with this monitor, and the 1400x1050 is more stretched out on the screen. so everything looks short and stubby. is there anyway i could get a better resoltuion for this 26" screen?