2 big problems - Add to cart and "no standard shopper group set"

[luftkaffe]

Ower all the new version of virtiemart looks good, but i have a couple of big problems. I hope you can help me solve them.
I am using joomla 1.7.3
And virtuemart 2.0.2

I hade set the debug mode on and get the message "Attention no standard shopper group set". I have a customer group marked as standard in the configuration, but still got this problem.

Also its impossible to add products to cart. I have tryed to unmark "Virtuemart jQuery" but still got the problem. I have changed template but still got the problem. Anyone know what do do next?

[jenkinhill]

1.  http://forum.virtuemart.net/index.php?topic=97643.msg326234#msg326234

2.  Error message:  SCRIPT5009: 'jQuery' is undefined   - you are not loading jQuery so VirtueMart will not work, but with jQuery loading I'd suspect a JavaScript conflict with your megamenu script.

[luftkaffe]

#1 worked. My search in the forum was lame for that one...

# 2 i still got problem with.
I reinstaled virtuemart with sampledata. With "Use Virtuemart jQuery" checked i couldn´t use add to cart button so i have to turn it of. Is that the problem?
I changed template to Beez2, still got the same problem.
It doesn´t seem to be related to my template.

[PRO]

"Load jQuery Module:
Set this module as it is displayed at last in the module position "position-1""

What is this?
http://sadface.se/shop/handtools/hand-shovel-detail

[luftkaffe]

I just only tryed a module to load jQuery. Didn´t work
http://extensions.joomla.org/extensions/core-enhancements/scripts/18654

I removed it now.

[luftkaffe]

Is it possible that my server configuration somehow makes it impossible to load jquery?