I gotta say....that is funny! Sorry about that! I'm not sure what is going on. You might try resetting your Blackberry (pull the battery). I am having a major problem with voice dialing too, but mine gives me back all kinds of funky choices...none of which are ever accurate. This happened after I synched with Outlook and put all 3,100 contacts on my Curve. Before, I only had about 50 and it worked great!
Please let me know if you find out an answer.