Virtuemart Slider Plugin conflict with mega menu and Virtuemart

[natax]

Joomla! 3.4.8
VirtueMart 3.0.12
PHP Version    5.5.26

I am using System - Virtuemart Slider  Plugin for the images of the products.
When it is Enabled my VM goes crazy ! I can save my changes but I have to refresh the page to see them !!!
and the Megamenu from T3 Framework  template it stops working.

I have to disable the plugin to fix what I want in the template and in VM and then enable it again.

Please help

[AH]

talk directly to the slider and T3 menu providers