Once and a while, after come back from the suspension, my screen stays black and blinking without stop, the only way to get everything back to normal is turning off the notebook and turning on again.

My laptop screen keeps turning white and sometimes flashes before shutting down. This began after approximately one year of purchase and has continued ever since. Last year it was away being repaired under an insurance policy more often than it was in use.

I've had Dell audio by IDT since I bought my laptop (Inspiron N5110), and was wondering is there is a way to set microphone as the default device when plugging in the jack. I am getting fed up of having it select microphone from the popup menu whenever I plug a microphone in... Thanks,