I am currently using Fearomone as my skin and I have found that it causes the taskbar to "float" roughly 2-3 pixels higher than it should.
I see the same thing using Fearomone, but only on my secondary monitor, not my main one. I run through all my skins and it happens only with this one. Again though, it skins fine on the primary screen.
I checked through for the ghosting as well, and i see the ghosting on any skin that does not utilize a full size taskbar. I hadn't yet used a blind without a full taskbar, so it wasn't apparent till Shimizoki mentioned it. Again, like Shimizoki, the ghosting is only on the secondary monitor.
Just Display Fusion having issues with visual styles again. Not a great deal for me, i hadn't even noticed it till now.
Win7 X64 with latest WB and latest DF.