Program error! Big problem, also.

When I tryed to load my next patrol Windows stopped the process, with the following display:

"SilentHunter3: sh3.exe Programerror!
The instruction at 0x004b9798 referenced memory at 0x00000010.
Could not read the memory. Exit SH3" (No other option given).

This was "Before leaving port".
Rebooted and chose the prior "After returning to port"
Redistributed awards.
Rebooted, selected "Before leaving port".
Read the orders, and attempted to load patrol. Fail!
Rebooted, and recompleted my last patrol. No problem,
Rebooted, and attempted my new patrol again. Fail!

Never had this problem before, and have no understanding of the numbers given by Windows. Not a hardware problem. No changes were made to any files during, or following, the last patrol.

Any help and/or information would be greatly appreciated.