To use:

Simply copy all of the contents of this zip file (minus this readme) to the \Override folder of your Icewind Dale folder.

What it does:

These script replacements make 95% of the traps in the game totally harmless, eliminating the need for a Thief with Detect Traps.  The traps will still give a "Sprung Trap" message but nothing will happen!  Those traps that remain are necessary for the story/puzzles.  If you need to, you can always use the Cleric "Find Traps" spell to locate them and if you really really need to disarm one, just Import a thief character, disarm the trap, then bump him back out of your party again!