@valid...I have done that...both the new drive and the old drive are fine in the enclosure...i can see them, format them, partition them etc...

but while i can hear and feel the drives spinning when in the internal drive bay, neither is recognized in any fashion...(they are both now formatted correctly and like I said, work fine when in the external enclosure...

I am hoping that the new ribbon cable will fix this...i will let you all know when it arrives..

thanks for all the advice and attention to my problem.