Did you get the latest updates? If not, you can update TurboTax desktop by clicking on the Help menu, then select Upgrade ... It would prompt you with update and you can follow the instruction. I can enter "SS2 site 13 comp 34" in the No./Street Address field and it didn't ask me to enter PO Box or R.R. My version is Build 5005 (You can check by clicking Help->About TurboTax). Hope this helps.
