I was just wondering if anyone has come across this annoying behavior in VS 2005 code editor window. It happens to me when switching between the code editor and designer and back. Say I switch to code view and begin typing. The editor will replace every other character with a ( or a ). When I try to backspace over it, it won't let me. It seems to happen when I have Grid Control on a form. And the only way to rid this behavior is to close the window and re-open it, but it doesn't last long.