could that be a driver issue
The last stable release is 2.7.5. Maybe try an upgrade first?

Don't be an asshat. 2.7.5 is the latest release. It is not stable for everyone. Just because it works for you, doesn't mean that everyone else should be using it.
The last "stable release" in my case is 2.6.1., on one of my systems, and 2.5.3 on another.