Are you using one big map (USA & Canada)? I used the DVD to load regions I used most. So I have New England, NY, etc. (Northeast) and then another map DB for West coast. The program routes and performs much faster since the database is 1/3 or less of the overall USA database. I kept the full DB on my 2GB card though for drives up to Canada (I hate having to change DB's at the border) but otherwise use the divide and conquer method to improve performance.
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