the center panel, the left gap is ok, but the right gap is too wide (may be left column padding + center left padding, as its about double..)

Which theme is this on?

OK, since the new theme functions have been implemented, it seems to be on them all.

look right at this moment, there are 2 issues, the gap BETWEEN left panels and center (its 2-3 times the width of the right gap)

and the center (main) content panel has "dropped" again (this was fixed a couple of months ago, so I would say its the new theme output code

I will (mentioned elsewhere) see what the theme code is doing, as sometimes this sort of thing is simply because 2 tags are on separate lines, when they should be "back to back"

I have an idea for theme output too, I will see how it can be used in the theme system..