That is a bit strange. Is the proprietary Nvidia driver installed on your LL 1.0.6 installation? If you can't remember whether you did that, run this in a terminal to show what driver it is using:
Code:
sudo lshw -class display
If I had to guess, I'd say you are likely using the Nvidia driver on the installed 1.0.6; but since that driver is not included on the live DVD's that's giving you display problems. (I haven't experienced that when running off of the generic driver, but that could be the problem on your particular hardware.)
Rather than running live DVD's, you could try running live USB's with "persistence" enabled -- that should allow you to install the proprietary Nvidia driver and allow you to test out whether that solves the problem or not. Install
Unetbootin into LL 1.0.6, then make your live USB's with it and tell it to use a persistence file. Make the persistence file any size up to 4GB. (If you use a 4GB USB, the ISO file will take almost 1GB of space leaving 3GB for use as a persistence file.)
Code:
sudo apt-get install unetbootin
A persistence file allows you to save things, make changes, add software, etc. and have those changes "persist" for each reboot of the USB. A live DVD does not retain any changes when you reboot it.
Another option for testing is to do a full installation to a USB stick (instead of the hard drive). Use one that is at least 8GB for that -- 16GB or larger is best. Here's a post describing how to do that if you need it for reference:
http://forums.linuxmint.com/viewtopic.ph...35#p841633. Just adapt the instructions for your USB's device name if it isn't the same as example shown.