Until recently, PGP WDE worked fine.
Then, Windows partition does not appear when I hold Alt at bootup. In fact, I get blank screen with either cursor present or not present. Windows partition does show up in finder, and if pressing nothing I get password prompt and boot to OS X. Windows partition does not show up in Startup Disk preference pane either.
Sometimes, it has shown up and worked fine to boot/select, but not at other times. Disk check shows no problems. I have made no changes to partitions or anything else, so it seems strange.