Inserting text from a function

[Mclaren]

I am using Dev Ashish's code for fOSMachinename. I have a text box on a form i want to insert the result into. I am using the following code:

 
Private Sub Form_Open(Cancel As Integer)

Me.CapturedMachine.DefaultValue = fOSMachineName

End Sub

when navigating to a new record the text box just shows : #name?

i have never had this issue before.

Am i missing something ?

The field : Capturedmachine resides in a back end table, and is a text field.

[RuralGuy]

The DefaultValue of a control is a string. Try:
Me.CapturedMachine.DefaultValue = Chr(34) & fOSMachineName & Chr(34)

[Mclaren]

The DefaultValue of a control is a string. Try:
Me.CapturedMachine.DefaultValue = Chr(34) & fOSMachineName & Chr(34)

that worked. perfect. But what is Chr(34) ? (i presume its an apostophy quote ?)
and, why do i need it in my code ?

[RuralGuy]

It is actually the DoubleQuote character ("). Try it in the immediate window to see what happens.