Quick and probably stupid question. My dad bought Windows XP Home (retail) when it first came out many years ago. The CD doesn't even have SP2 on it, and if I remember correctly, it might not even have SP1. Either way, I'm wondering if I can install XP using his CD on my computer without running into all sorts of activation problems. The CD has only been used to install XP on the same computer twice over the last 5+ years.