> it has never been an issue for me). Does it happen because my SubVI is > in the UI thread (because of the call by ref ? )? Is there a way to > prevent this from happenning (or do I have to redesign my VI around that > behavior ?)? >
I believe what you are seeing is that various parts of the VI Server must run in the UI thread, and they may need to wait for user activity as well. In particular, you are loading a VI, and load must take place in UI. It is possible that a future version of LV will be able to put load in another thread or that it will not need to wait for the user to release the slider, but for the moment, that is just the way it works. Greg McKaskle
