disabled ribbon in access 2007 runtime

I have a simple customized ribbon for an app I'm developing. All I want to
enable the user to do is generate a report on screen and then, if desired,
send to a printer. Works great in full-blown access but is disabled when run
with runtime access. I've pasted xml below -- can someone point me in the
right direction as to why the controls are disabled?

I originally attached the custom ribbon to a report, but have tried attached
to a form as well as the database itself -- same problem when I test under
runtime conditions -- controls are disabled.

Thanks in advance for your assistance.

zmoon

custom ribbon xml:
<customUI xmlns="http://schemas.microsoft.com/office/2006/01/customui">
<ribbon startFromScratch="false">
<tabs>
<tab id="DemoTab" label="Print Reports">
<group id="FilePrintMenu" label="Print Reports">
<control idMso="PrintDialogAccess" label="Print…" enabled="true"/>
<control idMso="FilePrintQuick" label="Print Quick" enabled="true"/>
<control idMso="FilePrintPreview" label="Print Preview"
enabled="true"/>
</group>
</tab>
</tabs>