we are using zimbra 4.5.5 and i'm using ical. i am subscribing to shared calendars with url's like

problem is, i see all the events as 7 hours before they are supposed to be. i am in Phoenix, AZ and we are GMT - 7. it appears as if it considers all these events to be on GMT.

this seems related to
but i think the bug reported in the end of that is not related to my problem.

i have "timezone support" turned on in ical, but it seems to be a problem even if i turn it off.