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I have a new Dakota 20 which I am attempting to load some topo's onto it.

I have read through the tutorial about this and am using basecamp as I am running Windows 7.

When I right click on the device or my sd card, nothing appears to happen.  But in fact, the program MapInstall.exe is indeed running, but it will remain running for as long as I let it...I gave up after 20 minutes.  Is this normal?  How long does this portion take?