Missing Artwork Only in Custom

Hiya!
Sorry for posting another "missing artwork" question, but I've been searching around this site for two months and still haven't found a solution.
I've been playing Magic Constructed so far but wanted to switch to Magic Custom to use cards not available in the former. Artwork is perfectly fine for Constructed and Limited, but completely missing in Custom. After several fresh installs, following the instructions in the Wiki to the letter, nothing has changed; the cardArtCus folder remains empty.
Using My2000.exe didn't help either. 'Refresh from Library (takes hours to run)' doesn't take hours but only a couple of seconds before I get the "Data refreshed" message, yet there still is no artwork. The only way I found so far to get artwork for a card is to replace it with another, and then swap the two cards again; e.g. replace White Knight with AEther Figment, and then replace AEther Figment with White Knight. Doing that for 2000 cards might take a few months, so it's not really an option.
Cheers!
Sorry for posting another "missing artwork" question, but I've been searching around this site for two months and still haven't found a solution.
I've been playing Magic Constructed so far but wanted to switch to Magic Custom to use cards not available in the former. Artwork is perfectly fine for Constructed and Limited, but completely missing in Custom. After several fresh installs, following the instructions in the Wiki to the letter, nothing has changed; the cardArtCus folder remains empty.
Using My2000.exe didn't help either. 'Refresh from Library (takes hours to run)' doesn't take hours but only a couple of seconds before I get the "Data refreshed" message, yet there still is no artwork. The only way I found so far to get artwork for a card is to replace it with another, and then swap the two cards again; e.g. replace White Knight with AEther Figment, and then replace AEther Figment with White Knight. Doing that for 2000 cards might take a few months, so it's not really an option.

Cheers!
