I am not shure since when I have this issue. But lately I added some 5MP cameras. In order to see some details on live videos I more often zoom in with the mousewheel (this feature is very useful with 5MP cameras). Many times when I do that the respective video window freezes. When this happens I can sometimes still zoom in and out on other video windows. But most of the time all other windows are frozen as well. The situation can only be recovered with restarting BI. It also happens is SD video windows. It also happens when I remove the new 5MP cameras.
Any ideas?
Any ideas?