Hey the company that I work for is having a ton of CRC errors from some of the QNX machines on the network.  I was not 
employed here when they were setup, I checked the switch side of things and it all seems to be good from there, the only
 thing I noticed is that they are all setup to be running 10mbps full duplex on the QNX side and the switch is set to 
auto speed, but all the ones that are error are running 10hdx and all the ones that arent are running 100fdx.  We use 
custom written network drivers so it might be that but I dont have enough exp with QNX to know for sure, I can post the 
driver config if needed.