Heya, that looks like heat stress.
You say the temps in the ROOM are 75, but what about the temps RIGHT UNDER THE CFL?
Oh yeah, and avoid misting sprouts. They don't like it.... mmm... pythium wilt!
A good way to ensure ample water and humidity is to put them in a plastic, not metal, tray and water into that and watch as the water gets sucked up. When they stop sucking it up from the bottom, that's plenty of water.

Good luck!

OH BTW I'm a huge fan of flourescent t-12 cool white TUBE lights for seedlings in the early stages. They run quite cool and I've never had heat problems, although I HAVE had those problems with both CFLs and my new wave T5... It's just way too hot for seedlings to be closer than about 3 inches or more.