Ouch, I saw you already got redirected from the Lenovo forum. Nice guys
I thought they had a good rep for Linux compatibility...
There are three things you can try:
1. During the countdown timer at boot, press a key. Then select "Check the integrity of the DVD" and hit enter.
2. If that is all fine, select "Start Linux Mint (compatibility mode)" and punch enter. (The hitting and punching is all stress relief.)
3. If that still doesn't boot, take a digital photo of the error and post (a readable) picture here.