Good news. Evidently during my last trip out in Nov., I must have hit a branch or something that bent the small handle/lever on the end of the slide topper. When the slide started out, it only went until the handle engaged the bracket, then it was stuck.
I took the handle off, two small hex screws, and it now works perfectly.
I need a new handle since I think if I try to straighten it, it will break. But, I am going to try.
Thanks for your comments/concerns.
Have a Blessed Day!
Don & Carolyn Koski
2009 34SATS, 2008 F250 Turbo-diesel CC