Ubuntu 9.10 will not boot

[feliscatus]

When I try to boot Ubuntu 9.10 normally, I get:

"Starting up..."

And then a black screen appears and nothing happens after that.

Attempting to boot in recovery mode doesn't help, as I get a variety of different problems depending on which kernel version I use...They range from "Could not open a connection to your authentication agent" to getting a command-line representation of my computer with no GUI. All my files appear to be there, but I just can't get the GUI to load. And of course I can't run any apps because there is no display.

My laptop is a dual boot with Windows, but that has never been a problem. Ubuntu 9.04, 8.10, 8.04, and backwards, installed and worked just fine.

Help please?

[Rasa1111]

that is exactly what happened to me this afternoon.
(and I am a newb, so dont take my reply to seriously) lol

the circumstances are not really the same,
but after moving my machine to another location today, and making some keyboard mistake....

my system was doing the same thing you describe.

I would power it on, and it would act like it was starting,
the little white ubuntu logo in the middle of the black screen would start, and then just go black.. and stay there, forever.

when i would try recovery mode... I would get a bunch of text on screen, and then nothing.

I never did figure out how to fix it..
I had to completely reinstall Ubuntu.

I hope you can get it worked out man.
sorry I couldnt really help.

g'luck