Alright i just purchased a Mad Dog Prowler 4.1 DSP sound card.  I installed the sound card which i recognized but windows doesnt have drivers for.  I proceeded to install the drivers from the cd that was supplied with it.  When i did so the computer GOT halfway through INSTALLING the drivers, it then restarted on its own.  It then WOULD not load windows up it would continue restarting. Eventually i restarted my computer into safe mode and did a system restore which alouded my system to load up., but the sound card driver didnt install.  I also TRIED the driver off of mad dog website and the same thing happened.  I then contacted the people i go the card from and they told me to disable my onboard sound in my BIOS, and it might work, so did that and i got the same results when installing the drivers.  I also tried unistalling the drivers for my onboard sound card and tried installing the drivers which didnt work either.   I am getting very FRUSTRATED and dont know what else do.  So input would be greatly appreciated.You should completely remove the Mad Dog Prowler audio card drivers and use a program such as Advanced System Optimizer V2 to clean your registry of faulty entries. Then you should install the latest audio card drivers for your soundcard.