sorry for typo... I meant to say "Sticks I purchased ARE by Crucial and their SITE confirms compatibility. I reviewed specs from here and Crucial (and did run the Crucial system analyzer) and bought memory sticks through Egghead (a bit less expensive).
Specs all said 2G is max memory capacity (2 x 1G sticks) .
I also posted this problem on the Dell hardware forums but have not received any responses yet.
One comment I read said I might need to switch to a 64 bit OS... any thoughts on that? Will that impact other operations/programs?