@glitterbag,
thanks - she also will chew on the wood on the panel that sticks out near the window and we caught her chewing on furniture. She chewed up a cord on a lamp (thank goodness it wasn't plugged in). She managed to get way under my daughter's bed (this after my daughter put blankets and other stuff all around the bottom of the bed so the dog wouldn't get at her stuff underneath - and managed to pull out items that were way in the middle of bed, and began chewing and eating them up.
So you can be in the room with her - so she isn't alone, tied up, without any toys, or any of these things you think are boredom.. and she still chews.
On the positive side - I've never seen a dog with cleaner, whiter teeth.