There is a workaround that has been mentioned in the forum before. In VL 5.9 Std there is a "refresh media" (or something like that) option off the vasm menu on the toolbar. It works on some systems, but not all. When it does work, you can leave the drive plugged in and dismount / change card / refresh media, then it will mount. This runs "sginfo -l" as root, so in any other VL, you could run the command in a console.