This started since I upgraded to FF4. Last night I closed firefox to try something. I got on this morning, clicked the icon in my tray and it wouldn't load. Literally 5-10 minutes and it didn't open. I clicked again and it said it was already running. I end the process then click again and it opens in like 10-30 seconds with none of my tabs restored. I then tried shutting my laptop down then starting it back up. After leaving it alone for a couple minutes, I clicked the icon again and same thing, wouldn't open. What is causing this?