We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
http://www.keil.com/forum/59677/
I've seen uv4 do this too, it's an odd focus issue, usually cleared by punching up/down a couple of other apps/windows
Win 7 x64 Pro AMD Catalyst (Radeon HD 4250 Graphics, 8.710.0.0 2/10/2010, ATI via MS WHQL) 1920x1200