I have disabled my virus protection (McAfee) because it seems to be expired and possibly causing my error message problems (Microsoft Support). I did a virus scan which found two infected files. When I try to download a free trial of Norton, I get the following messages. I would feel perfectly comfortable with a well-know virus protection like Norton but don't understand these messages. Does anyone know about this? "Do you want to install & run from spf.digitalriver.com?(Service@xxxxxxxxxxxxxxxx is the email address of an entity that sends out a newsletter offering updates, etc.) Publisher cannot be determined Authentication signature not found" I went on to more info and got something like this. "The software does not have a certificate so it might not be safe to install and run. A certificate contains information that a specific software program is genuine. This ensures no other program can assume identity of original program. Software phblisher has not obtained a certificate for this software from a recognized issuer so authenticity cannot be verified. Given what you know about this software publisher and your computer, youmust decide whether it is safe to proceed with installing running. If, given this information, you still do not feel confident about installing this software, then click No." I did not go ahead and install. I will appreciate any assistance. Thanks. Rebecca UNSUBSCRIBE by sending email to triadtechtalk-request@xxxxxxxxxxxxx with unsubscribe in the Subject field. To VIEW/CHANGE your subscription status go to //www.freelists.org/webpage/triadtechtalk