Can't get ubuntu to start today

[greensaharatj]

Last night I installed Ubuntu 9.10 32bit on my desktop alongside with windows 7 and everything was working fine I didn't make any major changes I just installed the nvidia driver for desktop effects and put a couple of applications like Wine and Compiz Fusion on for the desktop cube effect. Now all of the sudden nothing will boot up from the bootloader I select Ubuntu and just get a black screen with the flashing curser. I am fairly new to linux and am not familiar with the command line at all but is there a way to fix this? Is it possible that windows 7 is somehow interfering with my linux installation? Thanks!

[Exp HP]

It sounds like GNOME isn't displaying under the new drivers. I wouldn't know how to fix it, but for now you can try this as a workaround:

Ctrl+Alt+F1 (this switches to the main console)
Ctrl+Alt+F7 (this switches back to GNOME)

Using those two key combinations in sequence essentially "refreshes" GNOME. See if it helps or not.