Broken screen; Need to resize partitions

[morningcrafter]

I dropped my laptop from a tall table today and it splintered my screen. I hooked up a Dell monitor to it, so I'm able to use it, but I was planning on repartitioning my drives tonight so I could use all of the available space after installing Ubuntu 9.10 for the fifth time.

Here is what I'm working with:

Sony VAIO VGN-NS230E with unusable, but colorful screen
250 gb HardDrive
80 gb partition- Ubuntu 9.10 stable, installed yesterday
170 gb partition- Empty, useless, wasted

250 gb external Hard Drive with a fresh backup of my system (lucky)
4 gb flash drivewith Ubuntu 9.10 on it

What I want:

To resize the 80 gb partition so that it's using all of my HD space.

What I've tried:

BIOS won't work because I can't use my native screen and am using a different monitor.
GParted won't allow me to resize the partition I'm running it from.
VirtualBox won't let me install ubuntu on a different drive, freezes when I select install.

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Any suggestions? Thanks in advance!

[darkshadow]

LiveCD + Gparted

[morningcrafter]

LiveCD + Gparted

And how do I do that exactly? Keep in mind that I can't see the BIOS, also by LiveCD do you mean an install disk?

Thanks for your response!

[Ayuthia]

Yes, the install disc should have GParted on it provided that you did not use the Alternate version. That is how I usually partition mine.

[morningcrafter]

Yes, the install disc should have GParted on it provided that you did not use the Alternate version. That is how I usually partition mine.

How do I do that if I can't get into the BIOS to change the boot order? I'm unable to see my native screen at all and when it boots the monitor is non responsive until it begins loading the default installation.

Any recommendations? I've tried some silly things and am willing to play around with it.