Stir the packet of taco seasoning into cooked hamburger and toss into the crockpot. Pour in your salsa/picante sauce and then cubed velveeta and stir. Turn crockpot on to "high" for about an hour, stirring everyonce in a while to make sure everything is blended well. Once cheese is completely melted turn crockpot donw to "low" and serve with chips when ready.