Toucan doesn't work with Network-UNC-Path since v3.0

Hello,
I use Toucan to Sync files from a Server to a local drive.
I can select the source-path e.g. \\Dbserv1\ and the destination-path e.g. Q:\SAVE.

The button Preview works -> no messages.

The Run button creats the following:

13:10:19 Toucan 3.0.4

Computer Name: xxxx
Operating System: Windows XP (build 2600, Service Pack 3)

13:10:19 Could not create :\Dbserv1\
13:10:19 Could not create :\Dbserv1\C_\
13:10:19 Could not create :\Dbserv1\C_\XIFXSAVE\

Elapsed: 00:00:01

I know this "Bug" since version 3.0, so I'm still working with v2.2.1.