Hello,
I am one of the ones that had problems with the deck editor as well. Only one blue card appeared (elemental?). I am running XP pro here at the house and at work. Running the game from over at underdogs. Works excellent at work, only had the problem at home.
I am using a Logitech LX 500 wireless mouse/keyboard desktop. I tried up[censored] to the latest Logitech driver/SetPoint... no go on that attempt. Once I remove SetPoint from memory the editor runs fine now. I can unload it to play the game and reload once I am done. I haven't tried Shandalar. More interested in dueling and deckbuilding. I especially like the sealed deck tourney. You have to run with what you're given.
My 2 cent fix.
Rekh