Hey! Mining noob here.

Got GUIMiner set up on OSX and running on Multipool. I set up an OpenCL worker in GUIMiner with the following settings:

Server: Other
Host: pool1.us.multipool.us
Port: 17777
Username: multipoolusername.workerID (set up the workerID on multipool site)
Password: (empty)
Device: Computer GPU

I'm getting about 19Mhash/s which is fine with me for toying around, but have noticed on the Multipool site, I have no activity being shown. I have no active workers, and no logs of any shares even though I have 50 accepted shares in GUIMiner. My computer is actively mining, but nothing is being linked to my account.

Am I doing something wrong here?
Thanks in advance.