I have a UGA-2K-A that was working fine on my windows pc. I moved it to my wife’s Mac Mini running 10.7.5 and it runs fine most of the time. But (and here’s my question) sometimes the screen won’t wake from sleep and the displaylink process is running at 27-56% of the cpu. As far as i can tell the only difference between when it wakes ok and when it won’t wake is when Avira AV is running a scan on the mac. I have Avira on both PC and Mac it there was never a problem on the PC.