Rajaa, I have a few questions for you: 1. What version of Windows/LabVIEW are you using?
2. Does this only happen in the one VI/Application or can you make it happen in multiple VI's?
3. What are you doing in your code? (a generic question, I know) Are you making any driver calls? Are you calling any DLL's?
4. Does it crash when you have highlight execution on?5. When you restart LabVIEW, do you get a message popup asking if you want to investigate an internal error?
There may have been an error log that can help us. If you follow the instructions in this article:
<a href="http://digital.ni.com/public.nsf/websearch/54E361E3FF477EC186256C320068184F?OpenDocument" target="_blank">Where Are LabVIEW Error Log Files Saved?</a>
Additionally, could you post your VI so that I could try reproducing the issue on my end?