I am an absolute newbie but somehow I managed to install mandrake 10.1 I've locked the screen and I've forgotten my password. What can I do ?

Reboot, this time sign in as root and give the root password when it asks. Once signed in as root, run kusers and change or fix your password for regular user there.

Do you have your root password?

1. boot into single user mode
2. mount the drive in rw mode
3. at the command prompt type
root@localhost$ passwd root

- enter a new password
- ilovefatboys

[ continuing on - ignore the ilovefatboys i have sum gay ppl in my computer class]

- restart
root@localhost$ init 6

Hahahaha your gay and you cant constain yourself!!