OWA on SBS 2008 Incomplete / Corrupt / Red X

[Today's post comes to us courtesy of Justin Crosby]

We have noticed a few cases where customers are getting incomplete Microsoft Exchange Outlook Web Access sites.  You will see Red X in place of images and the over-all theme will look off.  Here is a screen shot of the issue:

OWA-Failed UR

This issue can also present itself as a blank screen when accessing https://remote.domain.com/owa.

Resolution

To resolve this issue install the latest Exchange 2007 Update Rollup.  If it is already installed, the installation may be corrupt.  In this case, you should reinstall the UR.  At the time of this blog's writing the current UR is 8 which can be found here: https://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=e1f5c8b2-c4f2-4eba-849b-e464d4f2869c.