Pre-Approval without a hard hit?

Hi,Where can I get a pre approval letter without a hard hit on my credit? I have attempted to get a pre approval via my bank, but notice that my credit score decreased after the bank pull. I lost around 20 points. How can I get a pre approval that doesn't negatively impact my credit score? by nbone6_283_120 from Louisville, Kentucky. Sep 6th 2011 Reply