Collectible Card Game Headquarters

I just got MTG 2010 installed and running. I was playing a duel, and attempted to play the "Reverse Damage" card, but the system basically ignored it. I selected the card and tapped the proper amount of Mana, but was never asked to select a damage source.

In the original game it was a bit tricky to use, the AI force a pause and ask you for a damage prevention card activation if you have any and only at that step you can use it, else it will do nothing ("damage card" in orange should be glowing more orange-ish at that step, asking to be selected or not).

Edit: this thread is not in the right section, a mod to put it on general or bug thread please?