Hi Gord,
The obvious thing is do you have the correct MIBs and have run mib2trap utility 
to ensure the trapd.conf is fully up to date.

I've been having a similar problem and have reported to Cisco. Here it is 
happening on Cisco WSC6009 and the incorrect traps I'm receiv$

generic 6, specific 1) and 1.3.6.1.2.1.47.2.1 generic 6, specific 1.

If your sure trapd.conf is correct, try reporting it to Cisco.

Graeme Nelson