You've just installed a new OSX update and after the reboot you aren't invited to enter your PGP password and your computer is useless (see right).
Word on the streets is that core OSX updates commonly break the booting mechanism of machines with PGP Desktop full disk encryption.
Recommended Fix
Follow the instructions here, which lead you to download a CD boot image (here for PGP 10.2), to burn it to CD and boot to it. You can then enter your PGP password and boot into OSX. Do NOT press "d"; this would start a 10+ hour hard drive decryption.
Alternate Fix
Find your OSX install disk, and follow the instructions in Part 1 of the PDF available here. These are older instructions, but this method apparently still works.
Update!
UF IT maintains a page on PGP, where the latest news is posted (like this!). It's generally suggested to hold off on installing OSX updates until PGP has issued a fix, which they seldom do quick enough to prevent these problems.
Also, this post was re-written in light of info in Symantec's official announcement.
Peter Zimmerman
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Sounds like a better fix is to just delete PGP and stick with file vault. Is there any official word on this?
Peter Zimmerman 104 days ago