Try these (my addresses are in my signature):

NOTE: the TC should be set for your card directly by deleting all bin files, setting the # of shaders and launching CGMiner.  The bin file that gets created will have your optimal TC # in the filename.  Therefore the TC number in my settings may not be your best bet.
-I 20 -g 1 --lookup-gap 2 -w 256 --thread-concurrency 22400