BlackBerry Curve 8330
Also, when replying to an email, it puts '
Once this is done, you can log into your carrier's BIS/BES page from your computer. Then click on Edit next to each of your emails. Scroll down to the signature field and get rid of the text and enter whatever you'd like, or leave it blank. You will need to input each email address' password and then click Save.
Let me know if you need more help.