Rtfm
I have no idea what an RM Switch LTD is, but try this:
Step 1. Put lock-out in position A: Can you compress the fork?
- Yes? This is the open (unlocked) position.
- No? Proceed to Step 2.
Step 2. Put lock-out in position B: Can you compress the fork?
- Yes? This is the open (unlocked) position.
- No? Your pre-load setting must be cranked super high, or you have very stiff springs, very thick oil, or you're running a very high pressure (air fork). Read the manual, and adjust pre-load according to the instructions. While in the manual, try looking for the lock-out description as well.
To combat endo's:
When descending....whether you ride with suspension, or with a rigid fork....keep your weight back. You shouldn't be heading over the bars if you're weight is over the rear wheel. Use your judgment to maintain steering ability, but you want to keep the front wheel light enough to be able to roll over obstacles. Also keep an eye on your line, and avoid any super large rocks or logs that may send you flying.
A suspension fork alone will not solve your endo problems....it's really there to provide you with more traction in the rough stuff, not save your ass every time you encounter an obstacle.
and i fore sure thought it was open to full compression. On the lever is it up or down to lock it out. :madman: 
