Hello Rakesh,
The first thing to try is to open Measurement and Automation Explorer and then open a test panel for your DAQ device. This should allow you to directly see what the hardware is seeing:

If this freezes your computer as well, then the issue is probably with a corrupt driver (DAQmx). If this does not freeze your computer and you see what you are expecting, then the ELVIS software is most likely the problem. If you do not see the input you are expecting, that points to setup or hardware issues. To try and fix a software issue, go to Add or Remove Programs»National Instruments Software»Change/Remove»[Corrupt Software]»Repair, that should try to repair the issue. If this does not work, you may have to uninstall and reinstall the software. If you get an error or some other odd behaivior, post back and let us know.
I hope this helps.
Message Edited by Neal M on 11-01-2007 01:36 PM
Neal M.
Applications Engineering National Instruments www.ni.com/support