Hi Shiv, It's difficult to say what could be causing this. It could be a bug. There is one thing I would like you to try and see if it sheds some light on the issue. Please download the evaluation version of LabVIEW 7.0 from http://www.ni.com/labview .
By doing this we should be able to figure out if this was a bug in this older version of LabVIEW and if it has been fixed in the latest version. Please let me know how this goes. Feroz National Instruments
