Unable to open url available in another W7 computer

I have W7 Home Premuim and tried to open the following url

https://clientservices.vfmii.com/pdl/Main.html?company=ihg

after a brief glimpse of a login panel I get and error (see attachment). However, I can open it in another W7 Starter and in an XP.

Also I was unable to download a University file, that I managed to do later in the XP.

Apart from this I am downloading loads of programmes and other things, so I don't understand what could be blocking these. Any ideas, please?

qim


Ps - I turned off the firewall just in case but still the same.


PPS -more news: ican open it in the same computer with Google Chrome and if I tri it with Firefox it tells me that I need Flash. It does not open with IE9, even though this is the browser I normally use and have no trouble with (other than these two issues)