Just for fun after reading this thread, I double checked my settings! Like Jason says above...you adjust after a few days?
My son has constantly tried to get me to do the 1024x768 settings...WELL, I just checked mine and could have sworn I had mine set on 800x600

LOL....mine is set at 1024x768, and also with small fonts selected. Im not sure if he snuck this one in on me OR if I actually left it alone the last time he did change it.
Years ago I did the 640x480 and couldnt grasp how people viewed with the 800x600 size! Then I switched to 800x600 for along time. You make gradual switches I guess...and thats probably due to what type monitor, video card and whatever else may come into play!!
I still have a few 15" monitors, but 99% of my time is spent on a 19" and the other 1% of the time I view on 17"
Ahh...what fun!!