Pjing,
Last time, you gave me great suggestions regarding refiling my I485. I took your suggestion and it worked well. I really appreciate your help.
I have some other questions now. I file my I-140 (NIW) last oct. and it since have been pending in NSC ( I am a post-doctor). I just got a job offer in a company and I want to use my EAD card. my questions are: 1) how risky it is? 2) what kind of caution should I take? 3) will changing job hurt my I-140 approval? 4) should I report to USCIS when I start using my EAD card?
Sorry for bothering you and your help is greatly appreciated.