Datagrid Column Header Issue

[amber]

Okay, there is some wierdness going on with my datagrid...

I'm trying to make my column header 2 lines high.
If I go into the Form - InitializeComponent code, and change the line:

Me.DataGridTextBoxColumn9.HeaderText = "Percentage"
TO
Me.DataGridTextBoxColumn9.HeaderText = "Percentage" & vbCrLf & "(%)"

and then run my program, everything works great - the datagrid displays the
text on 2 lines in the column header.

Once I try to close the form, the following message shows up on my tast list:

C:\Amber\A-Tek\Abitibi\Woodlands\FFIMS\Finlay Forest Information Managment
System\Finlay Forest Information Managment
System\WIS.UI.WinForms\LoggingRoads\frmLoggingRate Calc.vb(1021): The variable
'vbCrLf' is either undeclared or was never assigned.

Then, the above line of code that sets my headertext, disappears. (but my
column header remains 2 lines high).

Any suggestions how I can fix this? Or what is causing this?

TIA!
Amber