Deleting Domains causes error and domains not showing until restart ArcMap 10.1.1

Hi there

I am deleting some domains. When I do they delete but I then get an error with a layer I am displaying. It says:

Function ID is out of range [this appears something like 3 times in the dialogue box]

I also then get an ArcMap Drawing error:
One or more layers failed to draw:


project: USER.layer_in_question: Bad connection handle

Also after adding and or renaming domains, I find that when I wish to delete some of them or assign new ones to existing fields, they are not showing up. I find the only way to get them all to show up is to shut down ArcMap and reopen it.

I am using ArcMap 10.1.1 with ArcSDE 9.3.1 and the data stored in Oracle 10.2g database.

Kind regards

Tim