So, my shutdown process is, for now, open wbconfig, choose a lesser-used skin to render incomplete, apply it, shut down.
Upon reboot, there's the theme, sans skinned taskbar and start menu...'til I delete/reinstall that theme...
...open wbconfig, choose skin I wanted to save all along, apply it, and try not to have to shutdown or reboot. If necessary, repeat process. I'll wager I go fuzzy in the crumpet about the third time I have to do this, and revert to good ol' WB5.51 ... for me, WB6 has a hitch in its git-a-long for now.

[edit: Hours Later... Just upgraded WB6, via SDC, it said to restart and I did...Voila!

Mebbe this time...if I hold my mouth just right...
concentrate on the point between inbreath and outbreath, grasshopper....