Im not sure if its the orange network that might be at fault or the phone? It was happening when I was running it on Orange branding quite a lot, it seems to be doing it less now with the standard ROM but still is. Whats happening; On occasion when I send a text (with seemingly strong reception) it instantly says its failed. I know when I manually send it again people tell me that they received it more than once. That to me makes it look like the phone is sending the message but saying it failed. Any idea of any possible fix?