The Caps Lock key is reserved to be remapped as Ctrl in many people's setups.

I am actually using CapsLock for typing capital letters. I learned it that way when I first got computer and it stick with me. Plus it's much easier to write capital, accent letters from my language because I don't have to hold two modifiers (Shift+Alt), just one.

BUT DOESN'T THAT MAKE POSTING ON FORUMS HARD?!!