I didn't get any solution from Rational even.
Neither it worked for UNC format.
Then I tried Uninstalling Rational and agin installed...It started working.
But This cannot be the solution...Isn't it. For small error's like this all the time uninstalling is not feasible.
If you come across such error then it wuld be higly appreciable if you intimate me the solution as well.
Its true, you should not have to keep uninstalling and re-installing Robot each time this occurs. However, having used Rational Tools for 2.5 years or so I can say....you have to.....its the worst install and re-install I know from other tools as well..
"if it works, leave it well alone....if it does not work......ditch it!"
if it works, leave it well alone....if it does not work......ship it!