Amon, if you take out the include and all the associated command does the problem still occur?
I've removed the include and I still get a crash when exiting so it can't be the ExampleTiming. ExampleTiming is part of Greys Framework. It handles the fixedrate Logic.
I took GFK's advice and switched to DX and don't get any crashes so this is definately a driver issue.
I'll do some more tests and post my results.