Hello Orawan!
I am sorry, I am really busy that's why I don't answer immediately.
Oh, the letter "ö" is a german letter, only germans got this letter on their keyboard you know, that is why you can't press it but if you want to write it, just write "oe" instead of "ö". It's another way to write it. Same with the letters "ä" and "ü". You can write them as "ae" and "ue". :)
That is funny, I got a siamese doctor right here, where I live and his name is "Aswin Khuankhunsathid", you know this name too right? :p
So tell me, N̂xng s̄āw, how are you, did you plan something for your weekend? ;)