On Gulf Stream's usually the drivers seat must be moved full forward anbd the park brake set, for the slide rooms to operate. Glad you found the problem.
Mike, Amy & Muffin, Full Timers
RVSA Certified Master Technician
iRV2.com -Gulf Stream Owners Forum Leader
2000 Scenic Cruiser
99 Chevy Silverado 4 X 4 Toad
2006 Saturn Vue AWD Toad
NASCAR #3 & #8