I just tried running Centos 4 in full screen mode on an MBP. Switching to full screen works ok. But Alt-Enter doesn't do anything. Fortunately, CTL-ALT gets me the Parallels menubar, and I can click on OS Window, which switches back. BTW, I see over 100% utilization on bootup of Centos. That seems higher (and slower) than 2.5. I have a Core 2 MBP with 3GB of ram.
