Two Paypal accounst with different usernames but the same IP address or PC

Hi all, dear mylotters. I have a question and I hope you all can give me a hand in explaining about it. If two people who have paypal accounts access their accounts using the same computer, will that cause a problem? I know it should be okay but doubt it, which is why I am writing it here in the hope that mylotters can help explain about it. Your comment is highly appreciated my dear mylotters.