So, not sure why people are getting low rates but my R9 290x is sitting comfortably at 600+ MH/s.  I did notice trying to use anything other than the most up to date driver for AMD does seem to drop the Hash rate down dramatically.  Also this is on Windows 8.1 at Stock speeds, no OC.  OC seems to heat the Card up way too much for my tastes.  This is a HIS R9 290x base speed is 1040/1350 for this card 87c is what the temp is at and the voltage draw looks to max out at 1080ish according to MSI Afterburner.

Edit:  Forgot to add, this is my settings in the .cmd file,
smelter -o stratum+tcp://stratum.westhash.com:3343 -u user.name -p password -g 4 -W 64
Going up in Worksize seems to bring the hash rate down just an FYI

This software does desperately need control over Fan Speed.  Auto-Fan, Gpu Over Heat/Target Temp/Temp Cutoff.

I have an old 6850 that I would like to get to work with this software.  Any possibilities of seeing that card added?