Good morning Dwalsh27,
Thank you for your inquiry.
Can you please confirm the version of tide chart that you are using. Below are the steps.
Hit the Home Button
Select Charts
Scroll down until you see "Others"
look for SDWW00Tides_____.dbs, what version does it show? 006, 10, 12?
Can you confirm the tide chart version for us?
C-Bass