I was wondering if anyone could tell me what the difference is between Windows 7 Home Premium English US versus English non-US retail versions of the OS? I just bought a shrink-wrapped Windows 7 Home Premium English retail box off eBay, and instead of the described US English version (model #GFC-00019), I received the non-US English version (model #GFC-00025). Will this version work in the US (I'm in Indiana) and are there any significant differences between the two? I bought it for a new computer build, but I do not have any parts for it yet. So I cannot just start installing and see. Did I get scammed here, or is it no big deal? I would like to find out, so I can file a case via eBay/paypal if necessary.