Ugly docks with Toolmanager (help!)

[Legerdemain]

I'm having some very strange problems with the looks of my docks now when I installed Toolmanager. For some strange reason all of the images I use in the docks gets a 2 pixel wide border around them instead of the "ordinary" 1 pixel wide border.

I'm running OS3.9, does this have anything to do with it (though I am pretty sure I've used Toolmanager together with OS3.9 before wihout these really ugly 2 pixel wide borders).

Help, please! =)

[Legerdemain]

I've read the docs thoughroughly and tried changing various setting in Prefs/Workbench and other places, but I can't seem to find wherein the crux lies! *sad*