nvida driver/ screen size issue

[Kms1974]

I finally get Backtrack installed, backtrack show up centered in the middle and doesn't use the whole screen. when I was running ubunto 9.10 didn't experience this problem. I've tried to install the nvidia-glx-71 drivers and got this error nvidia-glx-71: depends nvidia-71-kernel-source but it is not going to be installed. settingolution
changed the resilution settings but the picture got smaller, therefore it is set to what should be the correct setting.

Then I tried the fixvesa command, that didn't work. I also used the xconfig command which also didn't work.

any other ideas, suggestions on to fix this would be very helpful.

Thanks

[Archangel-Amael]

When you followed the install instructions what did it tell you to do? I mean you did read them right.

[Kms1974]

Yes, I did read the instructions and followed them. Any other ideas?