I've the same problem: i've tried a million times to copy the data2.cab to Hard didk, but nothing at all!!!!!!!!!!
Whi ther's a support for this! You know very well that a seller not will replace an already-open PC box!
The problem is the GAME, poorly realized and badly published:pleas don't invent excuses!!!!!!
I've already payed for an unused game, ever played and Obsidian laughing, says: who cares..?, ha ha...
I will not buy Dungeons Siege 3... :