Hello,
thank you very much for the quick reply. i have new chapter to add to the story.
in fact, shortly after i posted this, i managed to find out whats that password question is referring to, 'cause i saw many people reporting the same. But: i never in my life set that password, nor knew about a default one or a person who could have set it before i bought the pc. on that first page when i pressed f1 or f2, both resulted in the password prompt, simply no other choice.
after missing all 3 passwords, i receive two kinds of messages: either it says something like, "fatal error, computer is at halt" or "press f2 to .... i cannot recall this one. but both messages come after 3 missed attempts. anyways, when i saw the 2nd option, i tried pressing f2, and all of a sudden it let me in to the bios. i was happy, set there Administrator password and User password, then system time, save and exit. i have been at this part a couple of times before this trouble came up, so i expected that Windows would load. but no. nothing! so again, i restarted, it took me like half an hour to get back to the bios password prompt. happily i inserted the one i have just set, and it didnt accept it!!! moreover, i never again could access the bios.
after this both the machine and i gave up, it didnt even seem to take the power from the supply. after some 12 hours, i replugged it to the current and tried to switch it on - but it is in a coma still. :(((