Shucks, never seen that before in cgminer before

[CartGeezer]

Greetings all!

Mining some POT, my rig runs about 800 khash, running two 5870s.  I check it every once in a while, this last time gave me a WTF moment. 

The GPU information lines have a weird reading for speed: 9.223E/440.1 Kh/s.  Both GPU 0 and 1 read almost the same.  My usual speed reads 406/406 Kh/s on either card.

The mining pool hash is the usual, everything seems to be working fine, chunking away, I just have the odd cgminer readings.

Has anyone seen this before?  TIA