I have had that problem for years. Filed a support ticket once and got no help for the problem. I have 2 accounts and used both the firestorm and sl viewer once upon a time. Now I cannot use the SL at all, for either av. I thought it might be the firestorm bridge which was still attached to the av I used with the SL viewer. But I deleted it and it still never runs more than 1 fps. I run in the 30-55 fps with firestorm. If anyone has had any experience with this I would appreciate your reply. Thanks