KX are not suitable for games due to dodgey DirectSound3D (and lack of full EAX) and if not gaming then you have a costlier card than you need and if into professional recording then something less than ideal too.
Quick search... Asus good... VIA questionable... but that's not to say that the problem cannot be overcome, assuming it is incorrectly installed now.
Got the latest BIOS?
Instead of randomly trying slots, refer to the mobo manual to find an unshared slot and then confirm from within CMOS Setup and the boot screen.
There are gajillions of Audigy cards in use with no problems so looking for a solution to incorrect installation or configuration to come from third-party hobbyist drivers is madness.
If it is correctly installed then focus on the configuration. Personally, I have not had a problem with various Intel chipset mobo's, Live's and Audigy's. Still, I recommend installing the minimum required software: AudioHQ, Mixer, EAX Console, Speaker Settings, Diagnostics, making sure they and the drivers are updated and in the correct order and removing the unnecessary schtuff from the registry startup:
updreg
asioreg
cthelper (especially if not using WinDVD)
sbdrvdet (if not using front-panel bay)
Good luck!