Hi, I just recently (a week ago) bought a 13 inch MBA and installed both Office 2011 & Windows 7 on it. However, I am planning to exchange it for a rMBP. The question I have is will there be any issue when I reactivate the licenses on the new rMBP? Will I need to explain to Microsoft on the licenses? Anyone experienced any difficulty with MS on this issue? Please advice. Thanks.