Why won't my iphone 4 send text messages?

- I have an iphone 4 (not 4s) which i brought about 4 months ago and it is so temperamental at sending text messages, sometimes it will send them fine really quickly but like 7/10 times it will say it sending and the loading bar will move across almost to the end and the it just stops for like 2 minutes and then will just come up with an 'message send failure'
- how do I stop this?
- it constantly happens since I got the phone and it doesn't matter how much signal i have because even when it has full they still don't send!
- I'm on orange but i don't think it is anything to do with them as all my other phones i've had with them have been fine at sending messages in my area

WHAT'S A DECENT SPEAKER SYSTEM?

I'm after a decent 2.1 speaker system. 2 speakers and subwoofer. Just good quality and bass.must be compatable for a PC and has a AUX present for use of iPhones.

IPhone/pod/pad 6.1.3 jailbreak

I know there's a jailbreak out there for the 6.1.3 updated idevices, i have searched EVERYWHERE but still no luck with a legit jailbreak! I've tried redsn0w, icysn0w, evasi0n, & absinthe isn't updated. So now what? Is there ANYBODY out there w/ an idevice that's on the 6.1.3 update and thats FULLY jailbroken? Please help!

Added (1). And I've tried jailbreakme.com also! Still no luck. Ugh

Any retro type games on iphone?

Any retro type games on iphone?

I'm a big fan of retro games for the snes and nes, virtualy any game consoles from around that era. Please could you recommend any similar games, of any genre? I'm just expermenting new games. If there's any like super metroid, contra or zelda please tell me some! Thanks

NOTE, please no emulators, as I already have some!

Iphone 5 will I have to go to apple store?

I have an iphone 5 I got from Apple store the phone is freezing all the time. I want to know if I can replace it in other shops like Pc world or would I have to go to the apple shop.

How much is the new tmobile iphone?

Ok so i had the iphone 4s with at&t on my moms side but she took it away for a long time, and i want a phone again.since my dad is nicer and he has t mobile, i want to switch to his plan and get an iphone 5 with tmobile, he is willing to do that, andi would be getting a nice new phone out of it, except how much would it to be to get a new iphone 5 with tmobile, and would it cost anything since i would be switching from at&t to tmobile?