I have an issue dragging files around in the finder with my Magic Mouse.

For example, I was trying to select and drag multiple files from the desktop onto an external hard drive.

However, whenever I do so, the files either end up deselected (and the move doesn't happen). If I try to drag a single file, finder ends up doing whatever it does to enable the file to be renamed.

Reverting back to the touchpad works fine.

Is there a problem with drag-and-drop with this mouse, or is there a setting that I am missing (I've scoured the settings, and nothing is jumping out at me).

Any help would be appreciated.

Thanks