Thanks for the quick reply.

The 2 element list to 4 variables was a mistake in extracting the dialog from the larger program. Apologies for that.

I your suggested broken out code works fine. The following also works ... 

$dfUser->configure( -textvariable=>\$user);    
$dfPassword->configure( -textvariable=>\$password);

[download]
I can get my code to work and the dialog to display correctly but I wanted to understand why the original code does not work. I am trying to learn Perl along the way.

In reply to Re^2: Tk with map - Perl newbie by stickleback
in thread Tk with map - Perl newbie by stickleback

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