I have got the immigrant visa under f4 category. I have entered the USA but has to go back after 1 month of entering to settle things back home before receiving my Green Card. Is it okay that I come back after 2 months while my immigrant visa which was 6 months duration will be still valid ? On my visa it is written "IV documents in CCD, it serve as temporaryi1551 evidencing permanent residence for 1 year". What is the connotation for this?