I am now in the summer house working on the family from my laptop, so your help worked!
One caveat: I had to relink my media files. On my desktop the document folder - and therefore the Rootsmagic data folder - is on the E: drive. On my laptop it is on a more normal C: drive, so that had to be done, but it is a quick operation. Of course I must do it again when I return to the desktop.
I use Rootsmagic 7 on my desktop computer. I back up using the build in Dropbox-feature.
Now I am going to have some weeks in the summer house, and I want to work on my family tree in the house using a laptop.
What is the best way to bring my database?
My own suggestion: Make a backup on the desktop computer, move the backup file to the laptop, restore the backup and continue working on the laptop. When I return to my home, I will do the same in the opposite direction.
Is this the best way?
The media files will not be transferred this way. That's not a big issue for me, but will it destroy the connections to the files when I return?
Another solution would be to use Dropbox or Onedrive as a location for the database file. But I have read posts here warning against that method because of the danger of corrupting the file.