Aqua basically said it all, but I'll just fill in too. Because I want spotlight...stop taking the limelight. >.<
Don't use Auto-Start/Auto-Run unless you want the player to not be able to move. If you do though, set a New Page requiring a certain switch to be on (Pages are sort of more advanced [Not really but still], so you don't NEED to use them, though that's the easiest way to get out of Auto-Start)
Parallel Process automatically runs the Event too, but the player can move. It's perfect for Weather effects, such as Lightning. Or it's perfect for trying to force some ambient vibe, such as Hue effects.
Collision will make sure the Event runs when the player and the event are adjacent to each other at any moment (Excluding diagonal).
Hero Touch will make the Event run when the player runs up to the event or is on the event space (If the Event is "Below the Hero")
Push Key will make the Event run if player uses the standard Select Key on the Keyboard (Space, Enter, etc.)
I don't remember the XP terms, this may even be the bad translation, but it's been what I've stuck to. ^^
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If you know what those are already and you mean the other freeze like the game crashes, then oh carp!
EDIT: Torque, press Print Screen in game and go to Paint or any other Image Editor and press Paste or Ctrl + V. For maximum effects, press Print Screen when the game is at Full Screen. If you want Print Screen regularly like in the editor, just press it.