I must be missing something...

Mining with Asus R9 290, running it in cgminer 3.7.2...

It's telling me I'm mining at 713 MH/s...and yet, when I check the pool... It says zero.

Here's my cgminer conf

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setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_OBJECTS_SYNC 1

cgminer -o stratum+tcp://mgc-pool.crypto-coinz.com:3333 -u xxxxxx -p xxxx -g 1 -w 256 --lookup-gap 2 --thread-concurrency 32765 -I 16 --temp-target 77 --auto-fan --gpu-engine 1000 --gpu-memclock 1500 --shaders 2560

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Anyone?