Did you figure out what is causing this? I am having the same issue. If I am logged in I can’t comment. I just get sent to a white screen. If the user is not logged in they can comment just fine.
I tried all these options and none of them worked. I have omnis as a host as well. After googling for 2 hours and messing around with things I figured it out.
For an omnis host there are 3 PHP options that are default off.
magic_quotes_runtime:
magic_quotes_gpc:
register_globals:
Everyone was saying those first two NEED to be off and they were, but register_globals NEEDS to be on. Soon as I turned that on everything worked perfectly.
