Missing artwork

[Gaz70]

I'm new to Launchbox. It looks awesome but I am having real issues with the pictures being displayed for games when sat at the main screen.

99% of the 15,000 MAME roms I have imported do not show art. I have spent about 5 hours on this so far, including a complete fresh install from scratch, and just cannot get it working.

On install I accepted all of the defaults. Default is box.

I have checked:

Tools > Options > Box Front Properties

and the first 13 boxes are checked.

I have tried View > Media > Refresh.

Tried clicking on a game, Ctrl-A then F5

I've even gone into the spreadsheet view and tried to do it that way but to no avail.

I've checked the game properties and confirmed that it has a DB number.

The one thing I did find is that if I go into the properties of an individual game and download media, it picks it up. So I'm deducing that an individual force is different to a global one.

I'm stumped how to resolve this and would really appreciate any help.