I recently upgraded my computer to Ubuntu 12.04 from 10.04 and it started messing up, as in, freezing up on certain programs and then randomly logging out and going to the log-in screen. I've done all of the upgrades and it still wasn't working properly.

Now when I turn the computer on, instead of booting to the GUI Interface, it boots straight to the terminal. Is there any command I can type to boot it properly? And if so, what do I do to keep it booting properly?

I did some research and found that some people used the "startx" command, but it didn't work for me. This is what it said:

"X: user not authorized to run the X server, aborting.

X10: fatal 10 error 11 (Resource temporarily unavailable) on X server ":0"
after 7 requests (7 known processed) with 0 events remaining."

Any help would be greatly appreciated!