Ubuntu wont install

[kamperman]

Please help, I already run ubuntu on my laptop and decided to bite the bullet and install it on my desktop. I loaded the cd and followed the instructions to the letter. I took the decision to allow ubuntu to completely partition my hard drive leaving no trace of vista. The installation went smoothly to the point where I was instructed to reboot my pc. After the reboot, which took an age, I was presented with a blank screen with my mouse pointer firmly planted in the centre and all my efforts to change this have failled. I have tried rebooting and rebooting in safe mode, but I am still in the same situation. Any help will be great as I am in the doghouse with the missus for messing up the pc.
Thanks

[MindFusion]

What are the specs of your pc? Maybe it isn't compatible with Ubuntu minimum requirements.

[wojox]

Did you boot the LiveCD and choose the try it without installing first?

[kamperman]

Yes I've checked the spec of my pc and it fits all the requirements, and yes I tried it without installing first.

[Pumalite]

Use the Alternate CD