I bought a "standard" ATI 2600xt (with two REGULAR DVI output ports) thinking it would somehow fit the (newest) 20" iMac, but I've heard some stuff which disencourages me to even try... what should I do? Is there even a slim chance I will be able to make it work on the iMac (the one with the 2400xt), or am I an *** for even asking?