Error when accesing the Lawson Protal

Hi,

I am trying to access the Lawson Portal and I get this error "The Lawson Portal does not support this browser: Netscape.
Use the Portal Installation Guide to determine the system requirements needed for running the Lawson Portal".

I went to Tools>Compatibility View Settings and I added netaspx.com. I then get this error

"Error: Type Error; Message:

Unable to set property "async" of undefined or null reference

Description:Unable to set property "async" of undefined or null reference

Any ideas? I have Windows 7. I get this same error in IE, Safari, Mozilla Firefox and Chrome.