At my office I installed Parallels Desktop 10 with a Win7 guest using an external 22-inch display connected to my MacBook Pro 15". No Coherence or Modality. I sized the VM window to occupy all space on the display outside the Mac menu bar and dock (dock is vertical on right). Now, away from my office, I'm trying to use Windows without the external display. The first time I resumed Win7 the VM window was small in the upper left corner of the Mac desktop. I resized it to occupy the entire desktop (as I had on the external display). But Win7 windows remain small, and even after resizing them all text everywhere is too small to read. What should I do to go back and forth between using the 22" external display and the internal 15" retina display?
