I'm suddenly experiencing a strange problem on an older installation of VirtueMart v1.1.7 (Joomla 1.5.26, PHP 5.2.15, MySQL 5.5.32).
I can access all sections of the VM control panel fine except for the secondary pages on the "Products" admin menu items. However when I click "New" to add a new category (or product) I get an unstyled/unusable page (see attached screengrab).
Thinking it might be SEF-related I've tried uninstalling, re-installing ARTIO JoomSEF but that didn't help. I also re-installed VM but that didn't help either.
What do I need to do to correct this issue?
Any help the community could provide would be greatly appreciated.
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