Nope, not cached that I can find.

I seem to recall the most common cause of this is either "Lost Interrupts" due to a solder joint problem on the IR receiver, or stray signals from the stalk interface.

There was a hijack command to disable the stalk interface, a BBS search for it should come up with the relevant thread.

For the lost interrupts problem, watch the serial port and see if you get a bunch of lost interrupts messages.