In reply to ajeetha:
Thanks Ajeetha and Dave,
When I remove OVM_DISPLAY, functionality does work (of course we have to give up on messages to be displayed on terminal).
Thanks for the solution. However, I will still go ahead and send the test case to EDA vendor to see if I can get some better picture(will try send to mentioned email as well asap). I will update the outcome of it here as well.
-Mandar