Hmm...well, the only suggestion I can dig up is that you not use 24-bit color quality in Display Properties under the Settings Tab. Some people tend to have issues with that mode. Otherwise, I'd suggest a program to do this for you.
Your fix only applies to web entries on the desktop, since practically no-one uses active desktop this option is not only already disabled it is meaningless. Plus you don't need a seperate program to set the color depth (which is not the problem) its the last tab in display properties. Sorry if I sound a little hostile but digging up information and understanding it is two different things.
Rather than guess further... Doomulation, explain where these blue text things occur, in pages? games?
Yeah I use cleartype with my LCD and helps a ton especially when using DVI. Anything else is too sharp looking. On my old CRT I used to use cleartype as well even though it looked a bit blurry I still looked better then the other options.