When I try to enter a line of code in vba (Excel 2003) the editor highlights
errors before I have finished typing the code. More annoyingly it adds the
second quotation marks (") as I am typing, this is making it almost
impossible to write formulas into cells as I lose track of where I am with
them.

I have tried turning all of the references off (except the 11.0 object
libraries) and there are no add-ins turned on