Explorer 2008-2009 don't work with UNC...

Dear all,

my solidworks users can't get sw explorer 2008 sp3.1 working on UNCpath.
Every references are red : file not found.

I tried sw2008 sp4 and sw 2009 and it's the same.
If i create a map drive , like z: to the unc path\\server\solidworks, everything is working fine.

The explorer 2007 was working with the unc.

Anyone got the same problem ? We refuse to have map drive on thenetwork... is there any other solutions ?

Thanks.

Christophe.SolidworksSolidworks Explorer