Click a subform field to open relevant form

Hi, this is my first post )

l've created a main menu form in Access 2007 called “frmSwitchboard”
and embedded in that is a subform called "subfrmSwitchboard" that
contains all customer orders of a certain type (Active, Paid, Unpaid).
Each order has an Autonumber field called ID as it's primary key.

Linked to the ID field on the subform is a macro that should open up
"frmOrders" with the relevant order number's record shown when you
click the relevant ID number on the subform. If I open up the subform
on its own in datasheet view and click an ID field then the relevant
order form appears, great.

However, if I do this within the subform being present on the main
form (frmSwitchboard) it doesn’t, I get an input box appearing with
the WHERE clause from my macro showing:

Forms!subfrmswitchboard!ID

The WHERE clause in the macro is: [ID]=[Forms]![subfrmswitchboard]!
[ID]

If I type in the order ID then the form appears but I want this
nuisance not to be the case. Where have I gone wrong?

Many thanks in advance.