Strange Problem With Hammer

Sarah

L1: Registered
Aug 6, 2008
42
0
Somehow the normal "close" "minimise" "maximise" buttons on any map I open in hammer have disappeared.

I thought once I closed and reopened it would sort it's self out. I also refreshed sdk content and still nothing. Is there a keyboard short-cut to remove them, that I perhaps accidentally hit ?

It's pretty annoying and I can't seem to find the solution !