installing sample databases for march CTP

I can't able to attach sam,ple databases.I have installed atlas sample applications as there default path.

I am getting error

CREATE FILE encountered operating system error 123(The filename, directory name, or volume label syntax is incorrect.) while attempting to open or create the physical file 'C:\Program Files\Microsoft ASP.NET\Atlas Sample Applications\Contacts\App_Data\C:\DD\ATLAS\MAIN\APPS\CONTACTS\APP_DATA\CONTACTS.MDF_log.LDF'.
Could not open new database 'C:\DD\ATLAS\MAIN\APPS\CONTACTS\APP_DATA\CONTACTS.MDF'. CREATE DATABASE is aborted.
File activation failure. The physical file name "C:\dd\atlas\main\apps\Contacts\App_Data\Contacts_log.ldf" may be incorrect. (Microsoft SQL Server, Error: 5123)

even if i remove lof file option when attaching the file,

(no result)

make pathC:\DD\ATLAS\MAIN\APPS\CONTACTS\APP_DATA\CONTACTS.MDF_log.LDF'

(no result)

rename database to contacts e.t.c

if any body got same problem and able to resolve then please guide me

Where you able to fix this problem , i'm having the same problem on my machine. thxs.