How to register without sending activation link?

Hello. I love HikaShop thus far, but I can't figure out how to allow a customer to register and proceed immediately to checkout. I don't want to have the customer leave my page, go to their email and then purchase. Seems like a good way to lose the sale. I have tried to unpublish the "HikaShop joomla user account link plugin", but that didn't seem to solve the problem.

Thanks
Roger

Follow up

I figured it out. For joomla 1.7 admins, here is how to do it:
joomla user manager->options(the light switch icon)->fourth option is for user account creation, select "None"

Thanks for listening!

thanks a lot, it worked for me

Thank you very much for this post!
In Joomla 3.5.1
Users --> Manage --> Options --> Component --> New User Account Activation --> None
(5th option in the component tab)