I have an Asko mid-range dishwasher that's about 10-12 years old. In the last two weeks, it's started leaving streaks all over the dishes and on the stainless interior. I'm not talking about a few minor streaks--these are major whitish streaks and blobs that make the glasses and stainless look unwashed. I had been using Cascade gel and Jet Dry rinse (as always) but switched to Cascade powder to see if that would be any better. It isn't.
Any ideas what could have gone wrong?