Hmm, sounds like two different chipsets. Basically put, you''ve got two different types of graphics cards. The Savage4 is made for gamers, thus will run games quickly [a faster chip] with a decent feature set [the set being the blending capabilities, how it handles textures, NOT flashing lines, blah, blah, blah.]
___The MagicVideo3D EP is a hybrid card [video capture, I assume, plus 3D] marketed toward multimedia [well, not really] and home users who like having a bunch of capabilities in their computer. The hitch with most of these cards is that the 3D speed of their chip is quite often lower than a card that focusses on just 3D at the same price. Also, the architecture [how it''s put together] of the card has to accomadate both the video chip and the 3D chip, which probably makes some compromises on both to get them working together.
___Now, before you start kicking yourself in the shin, just think of it this way; not only do you have dual-monitors for debugging, you also have two cards for side by side comparison: one that represents a mid-line gamer''s setup, and one that represents people that get premade machines / look for too many things in one place [er, not you, since that''s not why you bought it.]

---Sonic Silicon
P.S. I have a Matrox Marvel G400 in my system for vid capture and dual monitor, but recently added a Voodoo 2 1000 so I could play Final Fantasy VIII and Unreal Tournament at a decent clip. Nothing''s perfect.