T61 resolution problems-connecting to an external monitor

[tlldcd]

http://i762.photobucket.com/albums/xx26 ... C00104.jpg
http://i762.photobucket.com/albums/xx26 ... -onT61.jpg
Pixel becomes bigger and text can’t be identified on T61.

This problem first occurs when I do some task on external monitor and play a movie on T61’s screen. The pixels on T61 suddenly become vague and bigger. The default and optimized resolution are 1440* 900, but I have to reduce the resolution to 800*600 or 1024*768 in order to see what’s going on clearly.

In regard to identify this issue is a system or hardware problem, I had tried several way, disconnecting external monitor; Updating the video driver to the newest one; replacing my operating system from Vista to Window 7. I got the same result.

The worst situation is sometime the pixels turn back; anything looks alright either under Vista or Windows 7, but most time the pixels are still out of whack.

My T61 will be out of warranty after 2 month. Does anyone know what I should do? I worry about even though I send it to warranty service but this problem is going to happen again since it doesn’t seem like a hardware problem.

[Harryc]

Broke the img tags in your posted PICS. Please read the forum rules on posting inline pics. Thank-you