I can get my cubes to work using BFGMiner but I'm Having a problem using the mining_proxy.exe. My batch file setting is:
mining_proxy.exe -o stratum+tcp://us2.eclipsemc.com -p 3333 -gp 8330 -q
(and yes, mining_proxy.exe is in the same folder as the .bat file.)
Here is my miner settings:

And this is the error messages:

(And to restate - I can get this to work with BFGminer, I am trying to figure out mining_proxy.)
Any ideas? Thanks.
Why are you guys using a secondary stratum proxy when BFGMiner already has a stratum proxy built in? Just pass --http-port 8330 , change the ports on the cube page to 8330 (I guess you could pass --http-port 8332 also) and call it a day.