Please take a look at dev.indigoniche.com ... (this keep redirecting back to the live site because of a cookie issue but when that happens just go back to the dev area)
If you use the + and - next to some of the menu items you will see the working effect.
The problem starts when you actually go into the sub menu product pages. Eg. http://dev.indigoniche.com/Indigo/View-all-products?TreeId=1
You will see here that all of the sub menu's are now expanded and will not close.
I can't work out why this is the case. It only breaks when actually within the virtuemart component and it used to work. Its proving to be a real headache for me.
Thanks for reading and hopefully helping me. Cheers