How to change email settings?

How can I change the settings on my pc-so I can email in Greek ?

• I have windows XP. I do not have a keyboard with Greek letters-but a friend told me which letter matches which on my English keyboard-and said if I change the settings that should let me email in Greek. I hear that there`s a way to change the language settings on my pc so I can go into my email-yahoo mail and I can type in Greek letters. I am not good with tecnical stuff-so if anyone knows how I do this and could post a step by step guide for me I would be very grateful ! Many thanks in advance.

• Answer:

  Click on Start, then control panel. Go to regions and language, keyboards, change keyboard, then add Greek (Greece). Click apply. I've not used XP for years, but I believe that's where it is.