I've got a Windows 2008 r2 server with Sql Server 2008 r2 installed. I've got a Sql Server Agent which tries to run a Powershell job, but fails :-

Message
Executed as user: FooServer\SqlServerUser. 
A job step received an error at line 1 in a PowerShell script. 
The corresponding line is '& '\\polanski\Backups\Database\7ZipFooDatabases.ps1'' 
Correct the script and reschedule the job. The error information returned
    by PowerShell is: 'File \\polanski\Backups\Database\7ZipFooDatabases.ps1
    cannot be loaded.
The file \\polanski\Backups\Database\7ZipFooDatabases.ps1 is 
    not digitally signed.
The script will not execute on the system.

Please see "get-help about_signing" for more details..  '.
Process Exit Code -1.  
The step failed.

Ok. So i run Powershell on that server then set the execution policy to unrestricted. To check ..

PS C:\Users\theUser> Get-ExecutionPolicy
Unrestricted
PS C:\Users\theUser>

Kewl :) but it still doesn't work :(

Ok ... what happens when i try to run the powershell from the command line....

PS C:\Users\justin.adler> . '\polanski\Backups\Database\7ZipMotorshoutDatabases.ps1'

Security Warning
Run only scripts that you trust. While scripts from the Internet can be useful,
    this script can potentially harm your computer.
Do you want to run \\polanski\Backups\Database\7ZipFooDatabases.ps1?
[D] Do not run  [R] Run once  [S] Suspend  [?] Help (default is "D"): 

er..... didn't I already tell the server that ANY file can be ran?

Notice the file is located at...

\\polanski\Backups\Database\

So can someone make any suggestions?