Hi,
When you say "lock-up", do you mean that the application seems to pause by not updating the user interface? It sounds almost like either a callback is taking a long period of time before returning control to the application or possibly another application is using up processing time. I would try to isolate the issue by stopping all other applications and then taking out parts of the UI piece by piece to see where the hangup may be occurring. Let me know what you find! Thanks!
Jeremy L.
National Instruments
Jeremy L.
National Instruments