I have tried installing the game 10 different times and it fails at 3 different points so far, Data1.cab, Data2.cab, and Data4.cab with the error 1335.
AMD Athlon 64 X2 Dual Core Processor at about 2.8GHz
3 gig Ram
Direct x 10
8800 gts 320mb
Windows Vista Premium
.Net 2.0 running
Was there ever a solution to this problem during the demo phase I have seen many postings but no solution and when they get to 40 pages of postings you can barely sort through everyone's issues.