First of all, a very large part of the game is just, well, missing... One is unable to add cards from their inventory into they play deck. They just aren't there when building your deck. The only cards available are ones from your basic play deck given to you at the beginning of the game.
The second problem is a graphical bug within the deck building phase of the game. For some reason when you try to move left or right to pick cards you want to add or remove, it does this weird skip thing. From then on, you have no idea what card you are actually on and when you start the game, you find that the cards you put in the deck are not the ones you are playing with. The only way I can find to fix this is to play in windowed mode with vsync on. Of course the rest of the game does not work then because vsync causes ridiculous mouse acceleration.
Third is that the rules are different for the NPC than they are for the player. Take a look at this screenshot: http://img301.imageshack.us/img301/2937/screenshot0o.jpg
According to the rules, I should have won this game. When the exact opposite happened in a new game and the computer had three 26's and i had two 26's and a 25, the game ended with a loss. More frustrating is that, in this situation, I am unable to discard any more cards. Perhaps this is supposed to be a rule where if you don't have any more cards in your downside deck, you cannot discard. The problem with this is that opponent IS allowed to discard making the picture above unwinnable for me.
It seems that winning conditions in general are different for the NPC as they are for the player. It is very frustrating having the rules change every time you think you won.
Also, some people are having problems with the NPC's not wagering anything ever.
One more thing. Please add controls that make some kind of sense for the PC.