> No, I'm here for the stupidest of all reasons. I've wracked my brain
> for half an hour and I can't figure out a decent letter to use for the
> "show three months" switch.

gcal uses "." as month argument; from the info page:

`.' Previous, actual and next month of the current year, e.g.:
          gcal .

`. YYYY' Previous, actual and next month of selected year, e.g.:
          gcal . 1992

`..' Actual quarter of the current year, e.g.:
          gcal ..

`.. YYYY' Actual quarter of selected year, e.g.:
          gcal .. 1992

`.+' Actual and next two months of the current year, e.g.:
          gcal .+

`.+ YYYY' Actual and next two months of selected year, e.g.:
          gcal .+ 1992

`.-' Actual and previous two months of the current year, e.g.:
          gcal .-

`.- YYYY' Actual and previous two months of selected year, e.g.:
          gcal .- 1992