Problems with outlook 2000 message

Hi,

I have an application that sends out emails. We use Outlook 2000 when we send out the message and all the recipients also have the Outlok 2000. My application uses CDO to do this. This system has been running since three years. With outlook 98 everything was fine. Recently, we are having problems with the message formatting. This happens particularly in case of an RTF message. If the RTF message contains any bullets, then we are seeing some un-necessary dots(".") in the message for the lines where there is no bullet, at the recipients end. We use Word 2000 to prepare the message text. Also we use the mapirtf.dll to create the rtf message for the recipient. Is there any updated version of mapirtf.dll for outlook 2000? If not, can any one please help in resolving this problem?

Thanks,