Frustration.

Don't you hate when you want to know what you want to write, but you jsut don't know how to start it?

You know exactly how the rest of your is going to work out, it's already a masterpiece in your mind, but you just can't seem to figure out how to "hook" your reader from that first sentence so they keep reading your work.

Also, the blinking cursor is pretty daunting the way it just sits there and blinks, as though with each passing second it's judging you for your lack of productivity.

Grr.