Error Sharepoint + Avant Browser

Problem:

I'm using IE7 with Avant Browser and when I try to access Project Server 2007 via the web, I get the following message:
At least Internet Explorer version 6 is needed to use Project Web Access.


Solution: (this worked for me)

- right click the key [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform] and select "permission..."
- select your username and select "deny"

For further information please read the following:
Avant Browser
Microsoft