To get the zip code to enter correctly, I suggest opening QuickBooks in a private window. This will allow the program to run without collecting data like cache and cookies. Once the new window is open, you'll need to enter the employee's correct zip code and save it. If the private window allows you to make these changes, then you'll want to clear your cache and cookies so QuickBooks can run more efficiently. I've included some links below to help with the process.