Bank account balance incorrect after import from Quicken

[Tom Allred]

Just installed the latest version of gnucash and imported everything from
quicken.  Have data back to 1995.  No errors during the import process but
my primary checking account balance is low by around $3,000.  I reconcile it
every month and just did the latest one a couple of days ago before the
export/import.  Need suggestions on where to even start looking given my
newness to the product, the amount of data, and lack of errors during
import.

If it matters I'm on Windows XP and moving to Win7.  Was looking to avoid
buying Quicken (I'm using the 2000 version) for Win7 so that's why I was
considering gnucash.  Thanks.