Virtuemart, Mootools problems

When i worked in a project, there is problem happen with Virtuemart and Mootools in IE8, IE7. When you setup the menu with sub and view the virtuemart layout the menu will be not correct. And you can see the error with mootool.js.

After google and try many solutions without any luck, i found 1 very simple.

1. Go to the plugin management
2. Enable the Mootools upgrade
3. Bingo. Everything will be fine.

I hope this article will help you solve your problem.