Hello, I am new to roll20 and have been playing around with it for an upcoming campaign of mine. I seem to be having all sorts of little issues that makes using roll20 extremely difficult. The main issue is once I've clicked on something, say the Fog of War or the ruler button on the left side, I often can't unclick it. A lot of the web art can't be dragged onto the tabletop. I can use the deck of cards but I can't get rid of them once they are out. And there are other things. Just seems really buggy overall. I am using a Windows 7 PC and running the program on firefox. Any help would be appreciated.