VBA Module window problem

Hey all,

I am having problems entering code into the module window. Eg I start to write a new sub, obviously the first thing you write is the word Sub, but this is where it gets strange. When I press the space bar, the curser jumps back to where it was and the word "Sub" then it shows up in red text as if there is an error. But of coarse that can't be the case b/c I have not even written any code yet. No matter how many times I try to put in a space it always jumps back. So you can see that I cannot write any code right now.

Anyone know what this is and how to fix it?