While texting with hardare keyboard, it keeps adding a period if I double space?

[Richcop]

This has been driving me crazy, so here is my question, while using the TP2 hardware keyboard for texting how do you change it so that it does not insert a period every time I make an extra space? I tend to double space and it keeps adding a period in every two or three words. I have checked under settings/ input and anywhere else I could find. Thank you for any help on this