it first started happening after a storm we had but the pc was unpluged from the net and the power point, any ways i tryed to boot it up and it doesnt turn on... the lights and fans start but thats it nothing shows up on the monitor... then i left it for a day and it started ok... so i was trying to get the internet to work (as the phone line extension cable was faluty and was short circiting though the plug that gets pluged into the pc, so i got a new cable) but the computer was saying that the modem was busy or not found. so i turned the pc off and removed the modem asnd pluged it back in... then the pc lock up during start up ... lights and fans spining but nothing showing on screen... the monitor didnt even know that the computer was on... like if it wasnt sending any infomation... so i left it again for a hr and it started ok but the modem was stil busy... so i thought mabye the modem is damaged from the flauty cord so i got my spare working modem and replaced the one in the computer with it... then the pc would not start again... same thing nothing was being sent to the montor for it to display... so i left it 1 hr again... and now it half starts it gets past the windows xp loading bar but then the screen goes black and all you can seee is the mouse which moves very slow...
so every time i make a hardwere change the pc shows nothing onscreen and i have to leave it for 1hr and then it starts up but stops at a black screen with only the mouse visible...
any ideas as i need to get it working so that my sister and brother can do there school work on...
EDIT: this may or may not be much but the computer was still conected over the networked to my second computer which was also unpluged from the power point during the same storm and the second computer is broken 2... the mobo is stuffed... im not sure if that is involved with the first pc's problems...
i just want the first pc fixed atm ...