Hi Deep, One thing you may want to check in particular is the number of controls on your front panel. Please take a look at the document below:
<a href="http://digital.ni.com/public.nsf/websearch/DECF7C29643B985886256C53004957F8?OpenDocument">Maximum Number of Front Panel Objects in LabVIEW 6.1</a> I hope this helps. Sincerely, Feroz National Instruments
