Support Note
		Computers with LAPcan might freeze On certain computers/configurations where a LAPcan with just one connected DRVcan is used, the system might freeze or behave very sluggish. The problem might be hard to repeat. It might happen in configurations where all these conditions are true: Just one DRVcan is connected; the other connector is not connected  High bit rates are used (typically 500 kbit/s or above)  The CAN bus sampling point is typically around 80% of a bit time.  If you remove the LAPcan from a "frozen" computer, it (often) comes back to life.
		Cause: LAPcan picks up noise on the unconnected CAN bus and interprets it as error frames. This might load both the LAPcan and the host computer so the whole configuration might appear frozen.
		Workaround: Connect a DRVcan to the unconnected CAN bus. You don't have to connect it's DSUB connector to anything, the DRVcan itself will serve as a noise filter.
		Fixes: Firmware release 1.30.182 turns off the error frame interrupts if there are too many error frames on the bus. This should fix the above problem in most cases. The next hardware revision of LAPcan (Aug. 2000) will fix this problem permanently.
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