eshop, formbuilder and page menu dropdowns

Two plugins are conflicting with my menu dropdowns.

When they're activated, I am unable to see the submenu dropdowns unless I navigate to the top page of that group. Plugins are Eshop and Formbuilder.

Previously, I'd simply uninstalled the plugins, however they will be required on the site, so I need to find a way for the page menu dropdowns to display with those 2 plugins activated.

Is there a workaround / CSS addition for this?

URL again is http://gemnut.com/wordpress/
Click on "Beryl" and the submenu is visible. From any other page, that submenu is not visible.

I notice this was brought up in a prior thread. The culprit that time was also Eshop:
http://forum.bytesforall.com/showthr...light=dropdown