I am using opera in my computer with windows vista and I normally use this browser as my default browser because I am using this browser from long time. I have recently upgraded my browser from opera 10 to opera 11. Now after that my browser was running perfectly but from last days I have noticed that whenever I start the opera at that time turbo mode gets enabled automatically. If I disable the turbo mode and after that start it again at that time I found that it is enabled again. Now please tell me what I should do to fix this problem.