I have been getting calls from customers who have an item in their cart and go to add/edit billing, which of course has at the bottom "Register and Checkout" "Check out as Guest" "Cancel" When the user puts in their information and clicks any of the first 2 buttons it refreshes the page with some bogus error(sometimes).
What I noticed was the user is now logged in. Hmm Click "Cancel" now and it returns you to the cart with your address there and logged in. Why did it not return to the cart when the first 2 were selected. I disable the SEF (which sucks to do) and it seems to refresh properly. The template people are not too friendly in helping fix a VM feature. So here I am.
Any ideas? I can't run the site without SEF as google has the pages all indexed as SEF, DOH. Cant have buyers if they can't, easily, move forward without having to "figure" it out.
if disabling sef fixes the problem
There could be a problem with your htaccess file
OR if you are using a 3rd party sef component, could be a problem with it.
I dont have this problem either,
also "other" system plugins can cause problems.
I had problems with system plugins I created for my site causing errors with vmart "views" especially on forms.
IF you have a 3rd part sef component, it can easily create problems with "forms" etc.