With a 64MB vid card, EQ2 might be able to run on the very lowest setting, (extreme performance), with everything turned way down. "EQ ran flawless" for you on that rig but this is not EQ!!!
To do any serious playing here you will need a 128 or 256 MB vid card.
I have run the game on my laptop (with a 64MB ATI card), but only at the lowest setting and even then, I was only able to do some crafting and low level stuff... nothing serious like a full group on a dungeon crawl. The lag would've killed me!