I am Currently running Firmware Version 3.4 on my two AP700's. Is this the most current version? I have noticed some unpredictable behavior (nothing that lasts for any real length of time, I have mentioned it to my LFS - they indicated that I should check and update the Firmware. Assistance please I have 2 of these on my 180 Gallon Peninsula Tank. If I need to update Firmware, please let me know the steps I need to follow.