The fact that the EB intro screen is there tells me you've installed it right.
You could validate your install (see stickies) if you think there a problem.

Make sure you have no other programs running in the background.
And it sometimes takes more than half an hour on my pc too. I have only 512MB and especially when I just started the pc things tend to go really slow...

And the fact that it's not reacting to ctr alt delete is normal.

Good luck...