Olevia LT23HVX screen resolution

Question

Hi,I just bought a Olevia LT23HVX , and i have a problem with the screen resolution. when i connect my Laptop to the TV , with a resolution of 800 X 600 pixels on my computer , the TV works fine, but when i change the resolution on my computer to 1024 X 768 pixels, the TV gives me a "out of range" message. I read the manual and i know that the TV supports a 1024X 768 screen resolution , but how do I get this to work.?Thank you guys