i know this sort of a stupid question but here we go... I initially bought 1 gateway solo 5300 back in 2000... it works well and ive never had a problem with it...

Now, recently i bought 2 additional 5300 series...1 is a barebones that includes the basic chassis with processor and RAM, the other a full computer that has a dead LCD...now, using the lcd panel from the working 5300 i attempted to boot up both of the others. they both boot up but the lcd receives no picture nor power even...I have tried changing connector cable, lcd inverter to no avail...so i started to fear that it was a mb issue however the comps do power up and have the SAME issue so im confused...the one difference between the first comp and the other 2 is that on the first there is written QB1.00 and the other two QB2.00 so im wondering if that may be the version of that but in reality im pretty dazed and confused right now...any help for further testing or concerning anything would be greatly greatly appreciated...

When you turn the machines on, are there any beep codes? Are the graphics cards onboard cards or expansion cards? If they are expansion cards, I would try swapping out the card from the known good machine into the nonfunctioning machines to see if that helps.