Interesting stuff...
It seems that no matter where you place them or set there pack location to they will keep lining up untill they reach the end of the parent window and then drop down to the row below the location of the first one...
I have had them placed on a volume page as well but they wont work at all like that Grrrr as that is the ideal way to control what they do...
Need to have a re-think about this
