DLC Won't Install

Exactly same problem here... I can choose to install the DLC, but the progress bar stays at installing for an unlimited time or even jumps right back to "install"...

Mine is showing the download button, and everytime I press it it does a 1 second download and goes right back to the download button.

Any ideas?

What platform(s) are people using?

I'm having this problem and running Windows 7 64-bit with a Geforce GTX 275.

I DOWNLOADED SOME FREE DLC'S FOR MY MASS EFFECT 2 BUT DLC'S LIKE : NORMANDY CRASH , CERBRUS WEAPON AND ARMOR ARE SAYING THAT THE FILE IS CORRUPTED OR PARTIALLY DOWNLOADED .😕mileysad: WHERE AS MY ONE DLC IS WORKING CERBRUS ARC PROJETOR

I might have similar problem. I ma not usre if you refer to Origin or not. But in my situation the DLC list in Origin says only the Cerberus network is installed and the rest of the stuff is listed with the install buttons, but they do not work. I tried lunching the installation from there, from the download list but to no avail.

Any useful tips on dealing with the problem?

Edit:

I used the social bioware site to download my DLCs, but now I am getting the PhysX error for some reaon... nothing can be ever simple...