I have contacted Corsair and the first 2 emails were shockingly generic. I know exactly what the problem is and it is easy to fix. I use a Logitech G25 also, setting isolation to off screws up the G25 but all buttons work as is.
Logitech rep said if it a driver issue then it will get done. Yeah right.
Here is my original post
http://forum.corsair.com/v3/showthread.php?t=182223
David.