I built a WSS 3.0 site a few weeks back. For some reason, anytime SharePoint tries to use graphics built into the templates, it pops up a login box. I have the feeling it has something to do with basic authentication, but everything else is working PERFECT.
Everything else loads up on the page except for stuff like:
http://siteurl/_layouts/images/homepage.gif
http://siteurl/_layouts/images/attach.gif
I granted all the SharePoint users read rights to the following folder (and subfolders) on the webserver:
C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\IMAGES
I know it’s a hack, but it resolved the problem with homepage.gif. Now the same thing is happening with attach.gif, which is ironically in the same folder!
I’d like to get to the root of why this is happening, but don’t know where to start.
The server is a Windows 2003 SP2 server running IIS 6.0 and SQL Server 2005.