Pim, my monitor will go to 1920x1440, like yours, but I've never taken it that far. I switch between 1600x1200 and 1280x1024 depending what I'm doing - I like 1600x1200 on a 19" monitor, but some of the controls open in little windows that are just too darn small to see what you're doing :-(
What resolution are you folks exactly using?
I'm using 1280x1024.. my monitor can handle a maximum of 1920x1440... but, I prefer 1280x1024... What are you using?