Comodo Firewall inCompatibility issue with Bitdefender Antivirus 2011

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My recently purchased Bitdefender Antivirus 2011 will not work with my trusted Comodo Firewall on Vista Home Premium 64 bit. Does anyone know if Comodo has a fix for this? The issues were definite boot problems. Bitdefender technical flagged Comodo firewall as incompatible and directed me to uninstall it. I really liked Comodo firewall’s efficiency and need a viable replacement.

Bitdefender technical flagged Comodo firewall as incompatible
If so, the solution, if any, pertains to Bitdefender.