VUGEN not recording scripts

Hi,

I am trying to record a sample script using Load Runner's VUGEN, but am coming up with the following issues:

1. When I chose the browser as Internet Explorer and enter the URL and begin recording, the IE is not able to open the URL at all. The Status bar says Connecting but never completes the process. I am able to open the same URL, through another instance of IE opened separately.

2. When I chose the browser as Mozilla Firefox and enter the URL and begin recording, Firefox is able to open the URL successfully but the events are not recorded for the same.

Please advise me on the same.