Thanks, folks.
I went to the San Jose office this morning. The officer reviewed my I-90 application, took my photographs (2), took my signature and fingerprint. He waived my application fee since it is USCIS administrative error. They put "unknown" for "Country of Birth" in my GC. I already had my pp stamped before. He said that stamp is still good. So no new stamp today. I was told the new card will arrive in 6-12 months. He took my original GC as well, but didn't give me any receipt for my application, nor the copy of my I-90. Is it normal?
JLCF485, what kind of receipt did your wife get for her I-90? Where did she file?