I recently fell of the back of a boat which resulted in my faithful Samsung Omnia being written off. Since this was a personal phone, I decided to upgrade to a Nokia Lumia 800 as it looked like a fab phone. I have so far not been disappointed, however I hit two problems. The first was that my SIM was not a micro-sim. I contacted Virgin who told me they were very soon to launch a micro-sim, but not yet. I bought a 30-day sim from Vodafone in the short term, but then discovered that I could trim the current SIM to fit by following the detailed instructions at http://www.solutios.com/simcutting/ . All has been happy until my wife asked about sending MMS pictures from her phone. When I tried to do it from mine, I discovered that it kept on failing with an error and asking me to try again. This has been the second challenge that I have had with the phone! Searching the web found many frustrated people, some who had resorted to resetting their phones to factory defaults to get things working. I definitely did not want to do that. After pulling together information from a number of sources, this is what worked for me. I should thank John at Virgin's support desk as he also gave me the final piece to "enable" my account for MMS. As a note, I got the APN and MMS settings from the Virgin Mobile pages for an android phone - here for 3G and here for MMS. Here is what I did: Download the Network Setup tool for the Lumia 800 (I suspect it is also available for the 610/710/900). If you don't have it, you can get it from http://windowsphone.com/s?appid=b95840dc-a542-42a6-bee4-7d1a12f62d2c Ran the tool, selected Virgin as the Operator Pressed the "+" at the bottom to select add apn Entered the following details Connection name: Virgin2 Under Internet APN Access point name: goto.virginmobile.uk Proxy address: 193.30.166.4 Proxy port: 8080 Username: user Password: ...