Problem seems to be with rss in general. I cant even have the original mod with just Kopernicus, the textures and rss folders, without hanging right after all the parts load. I did a fresh install of ksp which made no difference. Ram usage doesnt exceed 2.5gb out of the 16 installed. If I delete either of Rss or kopernicus (which I guess need each other) the game loads to the stock universe. I cleared GameData folder and reinstaller SSRSS along with sigma and the lowest textures. I get 387 patches applied but it still hangs there.
Thanx for the replies. Could I provide any sort of logs, although it doesnt crash?