first, thank you to reply my question ! I'm using Mass effect 2 with Origins, my drivers are "up to date" and I'm using mods (textures..a lot) in order to "pimp" this "old" game... Windows 10 64bit , 16 Gb, Geforce 1080TI, SSD, etc. i'm playing with an HTPC and My full HD TV (1080p at 60 Hz). you asked for a dxdiag .. here it is (and Yes, I'm living in France.. lol!). And My problem with the 2 DLCs is always the same : I finished the DLC, then a cinematic is launched, I can see the usual summary chart of the mission (you can see, on the right part of the image, the back of the illusive man in his chair... and... Crash. To be perfectly clear, I can hear the music, but the image is dark. My system is completely "stoned"... so I have to do a CRT +ALT + SUPP in order to reboot my PC... ! At least it's not a BSOD... :-(