Tried it already and tried again today - problem persists. Article also says problem was fixed in P update, but this also has not solved the problem. Outlook doesn't crash - e.g. shutdown, it just cuts off access to the pst. Sometimes it will allow me back in after a few minutes without shutting OL down, but that's the solution most times. Also, it only happens with one PST file. I have 2, both POP. It happens to the default pst, which is also a domain address for work. The other is a bellsouth.net. I have also no problem accessing either pst from other devices - iPhone, iPad.