At first it would happen on a regular basis that in the midst of using Logos 4 (with windows 7) it would freeze and say not responding. But now when I open up Logos 4 it is not responding. Interestingly it is doing this both on my desktop and laptop. Both exceed the hardware recommendations as to the specs. When I first started using Logos 4 on both these computers it was fast but now it seems to be to a crawl at times.