BuggyDClown

If you still haven't found the answer for this, I had the same issue and have figured out the solution. Instead of the non-help we've got from everyone else. I will help, so others don't have this issue like I did, because it seems like it pops up for every new player that joins in the firestorm viewer. And it's most certainly not easy for a new player to figure out in such a complicated game. For the SL Viewer, it's simple. As it says in the guidebook itself, you just click on the "Guidebook question mark icon" or you click Help Menu, Guidebook. But for the Firestorm Viewer, you do this. Avatar menu > Toolbar buttons - find the guidebook button, drag it to any toolbar(the one at the bottom works) then click the button to disable the popup. Then you can right-click the button and select 'remove' to get rid of the guidebook button altogether if you like. I do believe this should fix the issue, but if it still doesn't, Click Help, Join Firestorm Support Group, and ask in the group chat.