Question : OWA Page cannot be displayed after login - loads frames

Outlook Web Access reports page cannot be displayed internall and externally after entering login details. It loads the blue flames (screenshot attached).
It's a very new install of Exchange and worked last week, but all of a sudden stopped?
I have attached the IIS log file.
I have re-installed Exchange along with SP2, and reinstalled IIS (before the Exc reinstall). I have followed the MS document on deleting and re-creating the OWA folders in IIS but still having the same problem.I have compared the settings with a working OWA system and they are the same (all defaults).

Answer : OWA Page cannot be displayed after login - loads frames

Can you double check the following:

Microsoft Windows Server 2003 (IIS 6)a.  Click Start, point to Administrative Tools, and then click Internet Information Services (IIS) Manager.
b.  Expand Web Sites, and then expand Default Web Site.
c.  Right-click Exchweb, and then click Properties.
d.  Click the Directory Security tab, and then click Edit under Authentication and access control.
e.  Make sure that the Basic Authentication and Integrated Windows Authentication check boxes are not checked, and then click to select the Enable anonymous access check box if it is not already selected.
f.  Click OK two times.
g.  Right-click Default Web Site, click Stop, and then click Start.