The Caps lock key and I have never gotten along very well. Other keys that don't like me include the "Insert" and the silly Windows key.
This morning was the last straw. Remembering that Google is my friend, I did a search for "Disable Caps Lock Key" and I found a gem - SharpKeys!
Now my Caps Lock key is just another Shift key and the Insert and Windows keys do absolutely nothing!!!!
And be cautious - just in case, be sure to back up your registry before running SharpKeys.