[X4U] Folder Sizes won't update

[netkat at comcast.net]

I can't get some folder to update after I add 
files to them..I've closed all folders and 
enclosing folders and re-opened them, I have 
created new empty folders, and trashed those to 
"force" an updating, but no luck.

do I have to resort to Restarting to get the Mac 
to show me how big a folder is?

nk