My washing machine is also causing strange problems. The dark colors come out fine, but light colors often come out with a single brownish line, even when they're washed inside out. The manufacturer told me to wash the machine out with bleach which only works for a few loads until it sneaks up on an unsuspecting white shirt.
Currently, I'm washing out both machines, which is probably the equivalent of putting on a band aid. My hope is that I won't have to replace either machine for as long as possible, or at least until April. Yes, my motives are purely selfish. My birthday is later this month, and I don't want an appliance as a present. I still haven't gotten over the Dustbuster my husband bought me, after our younger son was born.