Navigation header skins not all working right

Hi
I tried adjusting the navigation header skins and all I can use is the 4th one. Any other makes the mega menu go crazy showing not just the menu title but the description as well.
I would like to use skin 1 but that makes the mega menu display go crazy, I have put it back to skin 4 for now as it looks usable while I work on the site but would like to use the full theme abilities if possible. I also tried to change the header layout to option 1 but that pushed the mega menu into the revolution slider rather than making it follow the header logo in a line… Seems like a lot of bugs…
If you need to see what I mean then I can change the skin back to option 1 and refresh once you see this post,
Cheers
Bhu