Disable panels for specific themes

Hi, still no answer to my previous question, but I have another one :

If I use node/% to override node presentations, I can't have access anymore to node/%/edit with the standard garland theme.
I would like to have a front theme with panels page aenabled for my visitors, but keep the garland with standard node presentation screens for the admin users.

Thus I would like to disable panels override for the garland theme. Is this possible or am I doing something wrong ?

Thanks for your answer