Display Drivers ??!!@#

I have a display adapter card ( everyone has it !! ) …the problem is that …..i am using NT …and NT uses the default driver ( 16 bit ) and colors are $#%@#$ HORRIBLE !

and want good colors…and the problem is I have lost the drivers for the Card ….could anyone tell me how do I change the drivers and also tell me WHAT CAN I do to get 24 bit resoultions…….I tried many drivers , but failed………..:-(

Damn thing ! Plzzzz help….. i hope you understood my problem ! So please do something so that i can so NO PROBLEMO!

Merry X-mas to all !