Lyra2REv2 is giving me a hashrate of 8Mh/s but I am not getting any shares at all.  Ideas?

I've updated video drivers, I am using a ATI 7950 video card.

Intensity is 15 (otherwise I only get HW errors)
Worksize is 64 (otherwise I only get HW errors)

updated to latest on github and using Lyra2REv2 for algo.

I am connecting to pool.verters.com without issue... just not getting any successful shares.

Ideas?