My computer will not power up after shut down. Nothing, no beeps, power lights, no fan , zilch.... I get it on by removing something and puting it back in like the RAM or wertical card the LAN board plugs into and sometimes even thats does'nt help. I can get lucky and when it one it will run until I shut it down because it might lock up every now and again being in the net..but it will still run for days or weeks without being shut down if I let it.. I think it could be a virus in the CMOS ROM and needs re-flashing if it is a re-programable chip.. or the power supply is faulty... Am I looking in the wrong direction.. NEC Mate MA90H Thanks..