A2K Runtime Crashes on DoCmd.Quit

Hi;

Using A2K Runtime on XP Pro PC. Have all of the updates for XP and Access
Runtime including SP-3 for both.

The app opens to frmLogin correctly. On that form there are 2 cmd buttons.
Continue & Exit.

Can log in as USER or sa, (System Administrator) but when clicking either
cmd button get Access Runtime Crash.

"Execution of this application has stopped due to a run-time error."
"The application can't continue and will be shut down."
Only has OK button.

The cmdExit OnClick Event is:
Private Sub cmdExit_Click()
DoCmd.Quit
End Sub

Don't understand why would get a run-time error on DoCmd.Quit.

The MDB does work correctly on the machine that created it. Even opening it
as the User in Runtime Version emulation.

This Computer's Shortcut for Runtime test Target: "C:\Program
Files\Microsoft Office\Office\MSACCESS.EXE" "C:\CoDBase\CoDBase.mdb" /WRKGRP
"C:\CoDBase\Secured.mdw" /runtime /excl
Start In: C:\CoDBase\

On computer with only Access Runtime:
Shortcut Target: "C:\Program Files\Microsoft Office\ART\Office\MSACCESS.EXE"
"C:\CoDBase\CoDBase.mdb" /WRKGRP "C:\CoDBase\Secured.mdw" /excl
Start In: C:\CoDBase\

The permissions for frmLogin is:
sa = Open/Run, Read Design, Modify Design & Administer.

For the User: Open/Run

The User has permissions to Open / Run and Open Exclusive for the Current
Database.
Already re-ran Security Wizard. Thought maybe Secured.mdw was corrupt.

Would someone be so kind and point me in the proper direction to overcome
this obstacle?

Thank You for taking the time to read this post.

Andy