We also had a 2003 3295RK with factory installed slide toppers and they did the same thing a few months ago. Our dealer told us three to four years and they'll need to be replaced. We got four out of ours. We were going to have them replaced but traded the Montana instead.
The fabric can be replaced. It works just like the patio awning. I don't know myself how to do it but our dealer told me he can do it. If you do it yourself be aware there is high tension in the springs in the roller and if you don't do it right it can break your arm. So I've been told. But you **can** do it, with proper precautions.
See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'07 3400RL
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4
Our RV Travels (now Firefox-compatible)