Internet Explorer cannot display the webpage

i practice my first HANA application exactly following the steps in SAP HANA Development Guide. but i cannot open the internet explorer of this URL:

http://myserver:8000/mycompany/myorg/testing/MyFirstSourceFile.xsjs.

The environment i used is free 30-day trial environment signed up from SAP HANA Developer Center.

who can tell me why?

thanks a lot...