every time I click "upload" or "save" button in admin area it just kicks me out and I have to login in again! IE and FF works fine but opera.....am i alone?

Do you have cookies enabled in Opera?

@tuuletallaja
I use only Opera and I didn't notice any problems,
except refreshing RandomImage when I go back and forward
(it's advantage of Opera that it rewinds very fast b/c it loads page from cache
and not refresh the content, but you need only Ctrl + R to refresh the page).

I had "accept only cookies site i visit" - didnt work.
but when i changed it "accept cookies" - everything ok now.
thanks alex