Whatever imageset I select for my treview control, the images are not found
when I view the page in the client.

The image path is showing as
http://localhost/portSys/WebResource.axd?d=3Lf1s9yl.......

The treeview is in the content of a masterpage.

The collapse image shows alright in the designer.  Am I just not doing
something obvious or is there something else that I need to have done to
enable this facility?

asp.net 20 menu control useless ? [server callback, no menuitem click]
CustomValidator not working in FireFox
changing cursor of ImageButton
Reference of Available Metadata Attributes
Validation messages not displaying
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GridView DataSourceID Business-Tier Class
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Alternative to Hyperlinkfield?