Can't display some pages...

[momo]

I can't access to some pages since I switched to Vista....
I tried to go to my provider's site to check my e-mail remotely and got a
blank page.

http://www.suddenlink.net
If I clicked on "check e-mail" tab, I get a blank page.

I don't have any problem accessing the same page from another computer with
XP.

Please help.