I start the game, get the very small screen with a choice of full screen and 16-bit images, so far all looks good. I click to continue and the window gets larger with a message about loading. The message and its bg image are ok, but the rest of the window is full of garbage. Kind of a mosaic of about 80x80px tiles from outside the window. Sometimes the window also has two namelists, but that fixes iteself when the game is fully loaded.
When I run the game in fullscreen mode there is no garbage, just blackness until loaded. With a resolution of 1920x1440 the game looks very Z-80'ish that way though so I avoid it. Besides, I like being able to see what the rest of my computer is up to while I play games.
If, but only if, the game was laid out a bit differently in fullscreen mode I think I'd use that more often. For example if the avatar summoning screen didn't cover the enemy half of the battlefiled, and if there was a window to list all jewelry instead of press space to show, click to hide, move cursor, repeat.
Another small problem I've noticed it that sometimes avatars I have collected are still dimmed in my view druid screen. Starting as a fire druid I have two fire avatars and one spell to start with, and it says correctly Fire: 2 1 in the list, but all the fire creatures are dimmed when I click to see them, and the same with earth. Hasn't happened with air yet. It never happens with spells though, as far as I have seen.
BTW, are you ever going to make this game playable against others over the internet? I know someone I'd dearly love to send a few Treants against.