"They are too wide and stretch the posts causing sideways scrolling..
If we were using the board as just a board without the nav bar over to the side they would fit, but the way we have this setup they dont fit without distorting threads. "
That honestly hadn't occured to me - I view the individual threads in seperate tabs, (Firefox) and did the same at the old board, so the threads to me do fit the screen without distorting and I'd never noticed a problem.
I think the 17" monitor I have now probably helps also
With the previous one, I had to scroll for just about everything lol.