Straighttalk phone wont send texts

SOURCE: text messages not being received

sounds to me like a faulty device is it still in warranty?

SOURCE: why wont my sent texts save

Go to messages > settings (left button) > 2 > Check that autosave is on

SOURCE: text message failure, error message

reset that phone
keys; 3845#*610#
try this

SOURCE: cannot remove number in the sent IM menu of the LG Rumour

Click on messaging icon from main menu.
Click send message.
Instead of clicking text message click on pic/video message.
then you have 4 options TO: CONTACTS , TO Mobile#, To Email, And finally To Recent lict. Click on recent list and checkmark all the numbers you want deleted then click options bottom right corner then click delete.....
All finished hope this helps.

SOURCE: My LG Xenon won't let me send texts.

this is just happened to me. I would recomend going on www.chacha.com. that is where i found the answer!