I tried searching for my particular problem but had no luck. I have 2 external hard drives - one for Time Machine and another for storing media files. If I'm browsing the internet for say a few mins and then I want to save or open a file the computer freezes and then it takes about 30 seconds when the two external drives start up - only problem is I'm not accessing the external drives. I save my word documents on internal drive so I'm not sure why there is a 3- second freeze to start external drives - surely it should go straight to the internal drive? Another Lion experience!