OK, I found a temporary workaround. A PayPal Customer Service rep helped me call USPS who answered immediately (instead of leaving me on hold 30 minutes.) The USPS apparently test everything on Internet Explorer (don't ask me why.) My Customs Form window disappeared in both Firefox & Chrome every time I touched scroll bar. I installed Internet Explorer. Now the far right-hand scroll bar doesn't even work, it's just frozen, but at least touching it doesn't erase your page! Use keyboard arrows to scroll down. USPS really needs to get its act together. I don't even know anybody that still uses Internet Explorer.
... View more