Issue - I have approved EB2 labor (PD - October 2007) and I-140 (approved July 2008). I am thinking of accepting a job offer (with similar job profile) with higher salary from another company within the same city. If I accept that position and apply for EB2 again -

Question - will I be able to use my current PD (Oct 2007)and what issues/challenges should I expect? I have copies of my labor and I-140 applications. I will apperciate if you can share your experience in deadling with this issue.

My background - I have a masters degree from the US and five years of work experience.