Typing Alt-Shift I can change the keyboard layout from Greek to English and vice-versa.
When I use the Greek Layout in most applications I can type greek special characters but not in kwrite.
The difference is the key ";". If you press this key in Greek layout it's normal to see NOTHING into the screen because, after this key, if you press a greek vowel, then the writter types it accented or else unaccented.
I noticed the problem in Sabayon 9 KDE x86_64 (kernel 3.4.0). I also use Fedora 16 KDE x86_64 but , kwrite works ok there.
Iam not sure that it is a kwrite problem , it may be a KDE problem or something else.
Openoffice and leafpad in sabayon are ok with this. I can type greek words without this problem.
Thanks a lot.

Reproducible: Always