Does the same thing happen if you select Format from the top pull down menu? Trying to figure out if it's a format issue or a context menu patch issue...
For me, formatting related crashes or hangs are usually the result of wonky configuration or device drivers... Maybe make sure the last LUN/last device flag is set in your RDB?
I'm using classicWB as a base install so the menubar is in a popup that you can do anyplace, but its also doing it at the menubar as well.
I do remember changing DF0: in HDtoolBox to a new filesystem not long ago and put it back to PFS the other day, but I formatted it fine then, so not sure what the heck happened. I also just restored my last backup and it still does it, so it must be something related to the drive partitions?