If you are getting an error on your website (or really any application) or you are seeing a funny browser rendering issue on your website, it helps us to see a screenshot. This lets us see exactly what you are seeing. Taking a screenshot is really easy and helps us out, especially when we can’t duplicate what you are seeing.
Lifehacker has a nice series called Emailable Tech Support. They are simple and concise instructions on how to do certain computer tasks. Last week they covered taking screenshots. Take a read through to see how easy it is.