i did nothing special. just took the source and compiled it under ubuntu 13.10. runs out of the box that way.
Wondering what else is different... Are you running just one instance of ccminer? What's your processor, risers, Pci-e generation ?
I'm running win7 64 with a Intel g3220, 8gb ram, USB risers with Pci-e set at gen2.
we have nealy the same setup, but I only have 4GB Ram and, as already stated ubuntu 13.10. I only run one instance and I use powered USB risers.