Just give it a good solid 2 days. As others will tell you - I struggled with it the first two days - but now I'm liking it - and like how it's laid out. Still would like a font size bump on the "list view" of threads - but that's just personal preference.

I understand completely though - the first day it switched - I came in - and left ...I felt so out of sorts. Even the next day - I couldn't quite seem to get my brain in sync with my eyes, but it's grown on me greatly today. I think part of it is we've stared at the other format for so long.