No - exactly the same thing happens to me. I have to delete the extra http:// thingy before I can get back - I sure that this souldn't happen - but it does. So no, you're not the only person who gets this problem.
I just get a blank page. I keep forgetting to let them know at the office. They are at the St Louis doll show now but I'll send an e so they'll look at it when the get back.