Why do I have problems with texting through yahoo?

My girlfriend is getting texts from my phone number, but it is not me who is texting her. She is also getting texts with wierd characters, upside down question marks and other things. It is almost like someone else has my yahoo phone number. Has anyone...

I text a friend on Yahoo, and within the last two days he's only been receiving about 1/3 of my replies. Today, the texts I get are garbled with upside down question marks only. Anyone have an idea as to the problem?

Okay, here's the deal...Yahoo answers....I'm in love with someone I shouldn't be. I've known him more than half of my life and I can't help it. I got over him once when he moved away but I never really got him out of my system. He recently, less than...

I just tried Yahoo texting for the first time yesterday and sent 5 different texts to my friend, but she only received 1 of them. Am I doing something wrong? I checked the number already. Is anyone else having problems with this service? Is it reliable...

Okay I'm 16 years old and I just been told / realized that I have daddy problems. My father is around in my life, but he doesn't act like a dad towards me. Mean my parents got divorced when I was little younger, I was okay with it kinda, I had hard times...

I dated my ex boyfriend for about a year and a half and we met on xbox live. Before you say anything i know it was stupid but i know he was not a stalker because i heard him on the phone and talked to his parents before, even though we live in different...

I was trying to ask a question about SMS texting from Yahoo. I've never had problems before but of all of a sudden I couldn't send a text from my contacts. I could manually add the number but no longer send one from contacts. But when I tried to complain...

I got this phone, and it irritates me to no end, but they won't take it back. I spent the money on it, so I'm gonna use it one way or the other. It is an HTC Hero, and it has many, many problems: - I keep getting this popup that says "Data Call...

I have problem with forwarding emails from my yahoo-account to my gmail account. They disseappear some where on the way, which means I don't get them at all. This forwarding has been working until a week ago. I have also problems with sending mails to...