[cobalt-users] Broken admin interface

["Robert Tijdhof" <robert@xxxxxxxxxx>]

I have a strange problem with the admin interface on some Qubes. The
appliances work fine, and I am able to access the interface, but I can't
add users or assign users to groups or reboot the system through the
interface. When I'm trying to add a group, I only get the (normal)
message Please wait for the changes to complete. However this process
takes forerever, and the right frames goes blanc after a while.
BTW, I haven't upgraded PHP and the appliances haven't been compromised.
I have searched the archives for this topic, and found more questions
about this, but no answers. Does anyone know how to solve this problem
without a complete restore?