I have a customer who emailed me with the issue below, I cannot seem to duplicate this error on my computer or any others. Other customers also seem to have this issue. Can anyone find out what is going on here?

Customer email:

"I have been trying for 2 days to order a product from your website with no luck. I load it into my cart, click checkout without setting up an account, and fill in my name, address, phone #, etc then click "continue" but it gets locked up every time and I never get any further. I have ordered other products from other websites during the same time with no problem so it must be your site. Please let me know if you get the site working in the next couple days."

Like I said, I can't even duplicate the error, for us, we can go all the way to PayPal's Payment page with no errors. Is it something to do with her browser settings?

Site: www.~~~Beyon~~Lounge~~~.com Without the ~'s

Thanks