Vista - PST archives as offline

Hello,

I know that everywhere in the posts around the internet it's strictly not
recommended to have Outlook PST files on the network share.
And I don't intend to use primary PST file on the network. But I very much
want to have at least PST archives on the network share.

And of course, my PST archives are inside the folder where offline files
work (My Documents are redirected).

But I always get such errors upon sync (while Outlook running), that
mypstfile.pst.tmp can't get synchronized. Is there anything possible to be
done, that they get an exception or something?

Mantvydas