I had this issue as well, make sure that each file has been Unblocked (Right click -> Properties -> Unblock) and then run Steam as an Administrator as well - this solved it for me. Before I elevated Steam I got the same SDactivate error
[quote who="Yarlen" reply="18" id="3171714"]We believe this error occurs when your video card runs out of texture memory. The final release of Rebellion optimizes memory use further, so hopefully it won't continue to occur. [/quote] Well I am running the latest version from Steam (no more updates available) v1.02.4185 with a GTX 580 (which as previously mentioned above has 1.5GB of memory) and I still get this error. Its happened 3 times across the s
