You've been conned!...I would suggest you return it and get your money back!! If you have any problems take it up with Trading Standards.

I - probably like many others - have a 250gb hard drive, plus an 80gb and a 30gb...my PC recognises all of them!!

Sorry matey, but there is no way those hard drives add up to 80gb...whoever told you that "modern PC's" only recognise 70gb are talking out their a*se!

I have heard of so many bad reports about ebuyer, that I stay well clear of them...I would suggest you do the same.