Hi
Create 2 Message Digests like in the first screenshot.
Then Create an OSPF Interface and select 12 - 123... for the message digests and save you have now 2nd screenshot which is fine..
now edit it and uncheck the 12 - 123... and select the 34 - 345... and save... you will see as in the 3rd screenshot that message digest still 12 - 123...
I'm using Firefox 3.5.1 under Ubuntu linux..
thx
edit1: and if I select both and save this is taken into account except that I can't remove any of the 2 digests...