Please Help!!!

[rock1000]

I filed my I-485 a week ago. I received a letter saying that i need to proof my earning was lawful. I worked at school on my F-1 visa according to my school DSO, i can work on campus for 20 hours. They gave me a new I- 20 showing the place i will work on campus. This was the whole process i went through in order to work is this lawful. I only worked for 2 months, and filed taxes with my wife. What proof do i give them besides my I-20 and F-1 Visa.
Will this affect my case in anyway?

[stoff51]

check with the school

can you check with the school to see if they can provide you with anything else? Not sure what the 'anything else' might be, but they might know.