Update**
I called Atwood and talked with a REALLY nice representative! After reading and reading about repairs and fixes and replacements, etc...I was anticipating that a new replacement window would be way too expensive to consider..(I have read anywhere from $300 - $800 for replacements and the average repair at one of the foggy window places has been estimated at $275. Well, the lady I spoke with said that the replacement stationary pane from Atwood sells for $150 and the slider sells for $175. Add in shipping and I'm still less that even the trouble it would be to have it repaired. I've got to call back with the exact dimensions of my window frame, but am looking forward to a good transaction. Hoping I won't be disappointed!