dificulties in reading the text

Hello!
I have such difficulties at reading a site www.h2opolo.gr.
Instead of normal letters at my monitor are some mad signs.
Do you, probably, have some kind of technical difficulties?
Do not prompt, with what it can be connected, and what I have to do to make letters readable instead of be hieroglyphs?
I am grateful in advance.
I have such difficulties at reading a site www.h2opolo.gr.
Instead of normal letters at my monitor are some mad signs.
Do you, probably, have some kind of technical difficulties?
Do not prompt, with what it can be connected, and what I have to do to make letters readable instead of be hieroglyphs?
I am grateful in advance.