A couple bugs

Sorry, don't quite know the normal procedure here.
Forge 1.4.2-r22320, downloaded from the "Forge Beta: 06-28-2013 ver 1.4.2" thread.
When I was prompted to activate Insidious Bookworms' effect, I did so without having the necessary mana. It wouldn't let me back out and cancel the activation, so the game got stuck. Screenshot attached.
In addition, Yawgmoth's Will doesn't seem to work at all during the three or so times I tried.
When I activate it, its token/indicator shows up under the Human Command tab, and the graveyard cards have "May be played", but I can find no way to activate them. Is there some way of viewing and activating graveyard cards that I'm missing besides the icon under the avatar?
Forge 1.4.2-r22320, downloaded from the "Forge Beta: 06-28-2013 ver 1.4.2" thread.
When I was prompted to activate Insidious Bookworms' effect, I did so without having the necessary mana. It wouldn't let me back out and cancel the activation, so the game got stuck. Screenshot attached.
In addition, Yawgmoth's Will doesn't seem to work at all during the three or so times I tried.
When I activate it, its token/indicator shows up under the Human Command tab, and the graveyard cards have "May be played", but I can find no way to activate them. Is there some way of viewing and activating graveyard cards that I'm missing besides the icon under the avatar?