Horrible refresh rate and anti aliasing!!

[Maddog_011]

Hmm, after reading above posts and using realtime button or not, my frame rate is still awful in editor only, not in game. I have win 7 64 bit, ati crossfired 4850, e8500 at 4 ghz, 8 gb ram memory and everything flies away except udk editor. UDK or UT game in full screen or windows at 1680x1050 runs at 100+ frame rates, but editor as empty on load 12 and with map content poor 3 fps. It seems that editor it self doesn't use any gpu processing.
My cpu is almost 95 % busy on both cores when editor runs.
Please resolve this, otherwise there is no point of UDK for me.
For example Unity 3d editor and Crytek 2 are using 20% of cpu power and flies with 100+ fps no matter how overcrowded with content they are.