stuck my os several times!!
i installed ubuntu 12.04 on my win7. But now when i try to load ubuntu most of the time when the name "ubuntu" appears on the screen it will stuck. Then on my keyboard the lights except the num-lock light starts to blink. Then i restart my laptop it works. But my win7 has no problem. What i want to do?
I think restarting my laptop several times with the shutdown button cause problems in future. help me?