The random key is the Enter key on the keyboard. Once you press Enter, Select your language and press Esc on the keyboard. Then choose one of the following options:
- Try Ubuntu without installing
- Install Ubuntu
- Check disc for defects
- Test memory
- Boot from first hard disk
If you still can not get in, it could be that your Graphics card is too new for Ubuntu to recognize the drivers to work. I would suggest that you go and unplug your graphics card from your computer and use the on-board graphics card until after you have installed Ubuntu. Before the install, Press Enter, then Enter, and then hit F6. Select
nomodeset and then press Enter and then choose what you want to do. Continue with your installation. When the installation is done, Install all of the latest updates, then turn off your computer and put back the graphics card. Then install the drivers(Ubuntu might recognize the card and prompt you to install the driver. After that, hope for the best.