First off, I have no idea what lawpad.com is, but I don't understand your question ... did you plug in every grade you ever received and it told you what your LSAC GPA would be? If you have only attended one school and they graded on a 4.0 scale there are few reasons that your GPA would drop, so I figure it might be a flaw in whatever crappy program that site runs.
Second, don't start your research at lsatreport, lawschoolnubers, etc. The Official Guide to ABA-Approved law schools, available at www.lsac.org is the best resource for raw data. Most schools publish a matrix showing applications/ acceptances for various LSAT/ GPA combos.
Thank You. I haven't taken the LSAT yet so it all still seems so uncertain to me.Where do you find the stats chart on LSAC.org?