1. Power supply going up. Making loud "buzz!" noise at random times.
2. You test every Linux distro known to man and not feel 100% comfortable with any of them.
3. Windows partition weighed down by virus / spyware protection and still getting viruses and spyware.
4. Despite a once a month cleaning of the registry, it's still over-loaded with crap.
5. Your case isn't ventilated enough for your AMD CPU, which is a hot sucker.
6. You have a crappy third-party motherboard.
Yep. That's me. Think it's time to switch yet? 🙄