I was using OBGE v2 (with the most recent updates) alongside ScreenEffects just the other day, and didn't have that problem.
Probably a slightly faulty installation, or not quite up to date combination of mods. Something like that. Make sure you have the latest versions of everything (including OBSE v18) and follow the instructions and advice in the current OBGE thread's OP. For starters anyway. If you're sure you''ve done all that already, then I'm sorry, but I'm probably out of my depth.
Perhaps ask in the OBGE thread, in that event...?