Account Plans Edit does not load.

I have about 300 sites created with a plan called "250MB default batch" when they were batch created. Now the last 250 sites are using "250MB Default"..
I was hopping I could move the site created with the "batch" setup to the "default" ..

Well... when the page gets to "Virtual servers on plan"
It stops.. Well 30 minutes later it is still waiting to finish.

The other server I have has all the sites created with one plan. but the plan with the site on it also hangs when opening at the same point. The plans with no servers on opens, but does not have the "Virtual servers on plan" section. It has about 400 sites on it..

If you wish to know more just let me know...