I have reached the stage in setting up my new system where I've finished the DAW tweaking checklists and have started to install hardware and software. But...

Installing the Indigo IO sound card has run into a snag. It works fine on my old system (a Presario 1500 series laptop) but when I installed it on the new system (a Toshiba A75 laptop) it only makes screechy scratchy sounds. I've disabled the builtin audio, the drivers seem to have installed alright, the device manager says that it is working correctly and enabled. But nothing comes out but screechy scratchy noise, not even distorted music.

Any suggestions will be welcomed.