General Protection Fault
Who knows? Apparently, something is wrong, but Windows is unsure about the specifics; hence, the word general. From the word protection, you can assume that one program tried to stomp on some other program's turf. Windows responds by immediately killing the offending program and issuing this error message.
This is one instance where the Dr. Watson tool can be effective. Watson must be running in order to catch this one, and even if it is, good luck trying to find someone who can interpret Dr. Watson's results.
Fatal Exception 0E
A variation on the Invalid Page Fault error, this one crops up (again) when the program does something unusual or unexpected or somehow touches invalid or forbidden data. This error and the Invalid Page Fault error have subtle differences between them - subtle enough not to care about.
Perhaps the biggest difference between this error and the Invalid Page Fault error is that your Fatal Exception 0E requires that the computer be restarted in order to recover.