ausm, I'm sure you've already done this, but just in case:
Priority: OGR,RC5=0,CSC=0,<that other one>=0 with latest client.
If you set it to OGR,RC5,etc., it will do both OGR and RC5.
And make sure you run the 463 client because it's 20-30% faster in OGR than 462. (imagine shocked look gif - dunno how to do that) (People were wondering why my lowly Celeron was kicking all the Athlons and PIIIs in existence not only on a per MHz basis but also in raw cracking power until we figured out it was the client.)