Joomla main menu don't work when I access to a category products

[gabriela]

Hi,
I have virtuemart 2.0.6 in a joomlart template. I have the virtuemart access through a categories button, without problems, but when I click in some categorie for to access to products, the main menu of joomla with drop down moomenu don't work.
I have tested creating a module categories in right position, but it's the same, when I click on a category to access the products, the main menu of joomla does not work.
Is this a virtuemart bug? or a template bug? what can i do? some idea?

[jenkinhill]

Sounds like a JavaScript conflict - something to do with the template's menu code rather than VM.