Got a letter yesterday stating that my fingerprints had expired (From removal of conditions Jan 30 2011), and I have to get new fingerprints done within 90 days, so will be getting that done in the next day or so.
But here is my question: I thought fingerprints were good for 15 months, so they are really not expiring till April 30th 2012, but even if it the fingerprints were only good for 12 months, then they had already expired January 30th 2012, so USCIS waited 2 months to tell me that my fingerprints had expired???
Not sure I understand exactly what you are asking, but I'd suggest posting your question in the general US Citizenship forum so it gets more visibility. Usually the knowledgeable people don't read the monthly trackers.