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Hey askubuntu community,

I recently purchased a Lenovo U410 Ideapad, and much to my surprise, dual booting Ubuntu and Windows 8 was not as hard as I had thought it would be. However, the issue rises in the fact that occasionally, I would get stuck at the purple screen after I select Ubuntu from GRUB during bootup. This does not always happen; in fact, it happens only occasionally. My laptop usually is able to boot up.

One thing I do notice is that this problem usually occurs when I do my first boot up after a prolonged period of time (such as.... 1-2 hours). Once it freezes, I force shut down the computer and reboot successfully, and subsequent bootups will not have any problems (usually).

I recently installed all the drivers and updates for my NVIDIA Graphics card, so I'm not exactly too sure why my screen still freezes on occasion.

I'm also a new Ubuntu user, so I'm somewhat unfamiliar with the term "Kernel". I've read that it might have something to do with it.

I also have two other problems: I purchased the Indie Humble Bundle 7 in the past and I wanted to add Cave Story + and Binding of Isaac + DLC to my Lenovo. Binding of Isaac successfully installed through the humble bundle website, but there is no sound playing. Why is this the case?

Furthermore, I could not get Cave Story + to launch, even though I downloaded it directly from the ubuntu software center. I have tried uninstalling and reinstalling several times, yet nothing happens. The icon just flashes 5 times before it stops flashing every time I click on the icon.

If you have any solutions for my three problems, that would be most appreciated. The biggest issue would be my boot up problem; I would be okay with not playing Cave Story + or Binding of Isaac on my Linux.

Thank you everyone! John Li

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Please, one question at a time. Check /var/log for error messages. su to become root, cd /var/log to change the directory to it, ls to list the files and gedit FILENAME to read it. –  Alex Apr 19 '13 at 4:22
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