Odd sound problem with SUSE 9.1

I've got an odd sound problem on my PC (SUSE 9.1, KDE). The problem is that I only seem to get the right-hand sound channel through my speakers or headphones. It's not the hardware, because booting into Windows gives me full sound. The mixer settings show no balance skew. So, can anyone suggest why I might have this problem and how to fix it? John -- John Pettigrew Headstrong Games john@headstrong-games.co.uk Fun : Strategy : Price http://www.headstrong-games.co.uk/ Board games that won't break the bank Knossos: escape the ever-changing labyrinth before the Minotaur catches you!