I see you have no response over there yet. I can help you kill a WU in v6, but if that machine's v7, I'm not familiar enough with it, I installed it, liked the ease of installation and hated the rest of it and since it hasn't crashed yet I know next to nothing about it. Here's the thing though, if you ARE running 7, the advice I've seen all day today over there for Kepler WU's not being recognized is to upgrade to v7.2.9 . So if you ARE running 7, you don't need me anyway, just get the latest version from the beta section on the Stanford site.
All users other than BAP (yes you're special, BAP, you have Kepler) : I'm also reading that that new Core 15 2.25 hurts the performance of Fermi cards (what the rest of us are back on). Apparently though the only way to get it now is to get a 762x WU and the only way to get those now is use the advanced flag. Recommend if you're using it for gpu folding, lose it!