Krusty

I have also just bought a Heritage 2.1. computer speaker set up. I run a Dell Tower and are using AUX ie. not bluetooth. System sounds great BUT remote does not work (Red light on remote flashes, batteries new) nor do any of the knobs on the back of the sub woofer work. Have tried a factory reset which did not work. I can control the volume from my computer, but want to adjust sub woofer.....and things to work as they should. Any ideas before I take it back to point of purchase?? And thanks for listening!