Thanks for all the replies. Please see my situation/question carefully before you reply, I really need some suggestion from your guys:
Situation:
1. I lived in US from 1997-2001 with F visa.
2. I continued to live in the same place in US in 2001 with H visa.
3. I moved to Canada (with Canadian green card) at the end of 2001, but still worked for the same company in US, I needed to drive back and forth.
4. I moved back to US again at the end of 2002 with the same H Visa, but different company.
5. I applied to 140/485 in 2004 in US with valid H visa. The issue is I did not provide the Canada living address from 2001 to 2002 in my 485 application. From my 485, it showed I have lived in US all the time since 1998.
6. I am living in US with the same job when I applied for 485.
Concern:
I just realized that it might be a problem since I did not provide that right living address. Note,my office/position has been located in US from 1997 to now. Thanks in advance!