Anyone else use this method of shipping? I'm having a problem. I just starting using this way of shipping, and it's been great and convenient, but this is my first time shipping outside of Canada (the the US) with this method, and it seems to give me an error. When i type in the dimensions, which is just a small box, it errors me saying "you have entered invalid dimension' or something like that. No matter what dimensions I enter, it says that. I don't get it! Anyone have any solutions? Thanks
Dana