supreza,
Can you post more information? What version of LabVIEW are you using? Is the VI running? Are the other VIs running? If they are running, do any of then take a lot of processor time? LabVIEW only has one user interface thread, so if other VIs are in memory, then those VIs also take UI thread time to update, especially in development.
If you have an example, then post that as well.
Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask