I encountered the dreaded focuser motor runaway problem three times on a 10" RCX and the factory failed to fix it. I ended up trading up to 12" model that is still working, but I replaced the extension tube with a Crayford focuser and use that 99% of the time so I don't have to mess with the electronic focuser. I don't trust it.
DW
-------------------- "Don't worry about what telescope you own, or its quality. Just get out under the night sky, and enjoy God's wondrous universe." - T. M. Back
Meade RCX400-12 on JMI trolley "Ursa Major" TMB 130SS on EQ6 PRO "Ursus Polaris" Orion ED80 "Ursa Minor", WO ZS66ED "grab-'n'-go"
Canon EOS 30D (Hutech), Meade DSI, Philips ToUcam Pro