Hello & Welcome to Just Answer,
Sorry to hear of any issue you may have locating a manual for this device.
I can provide you with a link to the electronic (PDF) version of the manual - that can be displayed on your computer, saved, and even printed out if needed.
Would that work for you?
I see it has been a few days and I haven't seen a response on this page, so I just wanted to follow up to see if you have any more questions concerning this issue OR if the issue was resolved?
Let me send the link to the electronic (PDF) manual for you. For MOST computers, if you click the link (below), the manual SHOULD appear on your screen.
Click Here --> http://static.garmin.com/pumac/Drive_40-50-60_OM_EN.pdf
If the manual does NOT appear, you may need a PDF viewer program installed on your computer. I have a link to a no-cost viewer below - if you need it.
I look forward to any further questions or results that you may have.
Thanks, ***** *****--. .-(im)