2 really bugging things.

[ka-la]

1.

see the space between header and favorites links, thats the bug.

2.

image should tell all.

Thanks a bunch if anyone finds the first bug

[rajtheeban]

Probably an image between the header and favorites links ?
something like that
Explorer & Shell > Explorer > PreviewPane > <3> (sorry i don't use vista any more)

[sunbeam2000]

the first one:

in vista the separator (sizer) is 5px wide. it's set somewhere in the shellstyle.txt propertree-section, you can change it there, even removing it
in WIN7 it's only 3px wide..

the second one is a fillcolor, but i don't know actually where it is, i had changed it in an older theme, maybe it helps searching for fillcolors with that RGB-value..

[ka-la]

yes but making it thinner makes it much harder to cach with mouse.