Trouble with text messages I send

[Cely]

Hi to everyone. Is a pleasure to be here... I am experiencing some kind of trouble with the text messages I send from my HTC Desire. In my phone appears the text message correctly, but to the person that receives it appears weird letters... for example... "en_uhtfv!," Then it send a message saying "message format not supported"
Does anyone knows what is happening or how can I fix this? I try turning it off, removing the battery and still goes on and on.
Thanks for your time

 

[Tyseyh]

i assume this only happens on their phone with texts from you?

 

[Cely]

Yup. But the last message that my sis received from my phone was "message format nor supported". Now I'm more lost.

 

[Tyseyh]

Try another SMS application?