plenty...
1) if you hit F4 (to go back to the editting mode) you can see a 4-way arrow. it happens to fast though and you can't click it or actually use it
2) my graal setup didn't download all the files. it didn't give me the level generator, or graal shop! i was wondering if you could make these stand alone? you could put them in the download section of the site
3) sometimes graal will freeze up for me and i have to restart my computer. i don't know why either, it was working perfect for i updated
4) i can't play without lagging really bad, unless i disable lightingeffects. but that's no fun
hope i helped you out!