I have a IBM ThinkPad T-41 that I had to replace the hard drive in. I ordered the recovery disc and have been trying to install them. Per the instruction I am to hold the F1 key and turn on the power. When the screen comes on I released the F1 key and it takes me to the next screen that has in the upper left hand corner small picture of a monitor and a padlock that is locked. How do I fix this?