Quote Originally Posted by Platypus
The system has to have more than 640K of RAM available before shadowing can work, as it uses upper memory, in the top 384K of the first megabyte. Until the memory can physically be accessed, those features can't be enabled.

I think you'll have to find those memory cards on the system board and check them out.
All right, I'll do that. I presume these memory cards--which I see are similar to the ones in my laptop--are still available new if I need to replace them?

Or maybe a local computer shop can test my memory boards and find me some used but working replacements lying on the floor somewhere.

;-)