finder window does not open full screen
When I open the finder window, it is not full screen.
It is about 8x10 inches on my 30" Nec Monitor.
I called apple tech support and they don't know how to make it open full screen.
Of course I can drag it to full screen and it stays full screen until I restart.
After restart it goes back to open at 8x10.
Any one else have this problem?
Any suggestions?
Mac Pro, OS X Mountain Lion (10.8.2), Mid 2012 Six core Mac Pro