Sometimes when Melvin or Gary say something it stays through out the game and i cannot close their speech bubble. This only happens at the end of a "conversation" and there is no continue button. The speech bubble covers some important game information.
I'm sorry i didn't make a note of it at the time. It was within the first three or four modules in the campaign for sure though!
There are times when an in game speech bubble pops up (usually at the start of a scenario) which doesnt have a continue button - this annoyed me for a while too, until I discovered in a moment of random frustration that simply left clicking anywhere on the bubble dismisses it. Gray
I'm having this problem right now in "Highway Robbery"(?) at the Forest Edge with Melvin saying "Correction: The old man in the tavern was a Goblin spy Gary - did you not read the GM's notes?" Left click does not get rid of it (though you can click on things behind the pop-up. Windows 8, Google Chrome