License issue, PIX with failover

We have purchased one license of Firewall Analyzer to monitor a PIX firewall. It is however a firewall setup with failover. Its only usefull to monitor the active PIX so I figured I only needed one license. As the config is replicated to the stand-by PIX so is also the syslog export, and I end up with two PIX'es in Firewall Analyzer. It is then complaining that I should upgrade to one more license. I have tried to delete the stand-by PIX from the software but it keeps coming back. Is there any way around this? Can I make the analyzer ignore the syslogs from the IP of the stand-by PIX?

Best regards,

Ken Larsen