Like most everyone here, I had problems with my MMS settings and getting them to work. You can read about my trials and tribulations in this thread:
https://straighttalkwirelessforum.com/viewtopic.php?f=6811&t=1259028&start=20
Last week I re-tried some settings using this YouTube video and was able to send MMS, but not receive:
http://www.youtube.com/watch?v=QURFAvs18zE
But last Sunday, I refilled my phone for the first time (using the $45 unlimited plan, the same plan I started with) and within minutes of refilling my phone was able to send and receive media messages. My suspicion is that for some reason ST is locking out - probably not on purpose - new customers from MMS. I noticed when I was buying my card online there was a note on the ST web site that said media messages might not work if you didn't have any minutes left (or something like that). I'm wondering if ST is seeing some new customers as not having any data allowance or minutes? Would that be possible?
Has anyone else had their MMS start working after adding their first card?