redletterdave writes: When my best friend upgraded from an iPhone 4S to a Galaxy S4, I texted her hello. Unfortunately, she didn't get that text, nor any of the five I sent in the following three days. My iPhone didn't realize she was now an Android user and sent all my texts via iMessage. It wasn't until she called me about going to brunch that I realized she wasn’t getting my text messages. What I thought was just a minor bug is actually a much larger problem. One that, apparently, Apple has no idea how to fix. Apple said the company is aware of the situation, but it’s not sure how to solve it. One Apple support person said: 'This is a problem a lot of people are facing. The engineering team is working on it but is apparently clueless as to how to fix it. There are no reliable solutions right now — for some people the standard fixes work immediately; many others are in my boat.'