Deploying software via GPO not working

I have this problem with ANY software I try installing to my users.

I know how to create packages, I looked at all the guides, and I'm doing it down to the detail.

For some reason, User install packages work great, granted only if they have install rights and are a administrator...which is only IT.

So I made computer install packages and it doesn't work. Particularly right now I'm working on distributing a Java MSI file. I'm using the network path, I have authenticated users full rights to it and the path. Yet it doesn't work. The event log states error %%1612.

Any help? We're using SBS 2011.

Here are the logs from my eventvwr.

Error:

Failed to apply changes to software installation settings.  Software changes could not be applied.  A previous log entry with details should exist.  The error was : %%1612

Error (#Java is the name of the GPO in the error)
The install of application Java 7 Update 7 from policy #Java failed.  The error was : %%1612

Warning:

System

  - Provider

   [ Name]  Microsoft-Windows-GroupPolicy
   [ Guid]  {AEA1B4FA-97D1-45F2-A64C-4D69FFFD92C9}
 
   EventID 1085
 
   Version 0
 
   Level 3
 
   Task 0
 
   Opcode 1
 
   Keywords 0x8000000000000000
 
  - TimeCreated

   [ SystemTime]  2012-10-09T21:11:35.446493000Z
 
   EventRecordID 178444
 
  - Correlation

   [ ActivityID]  {B93908E9-8991-4F7A-8306-ADFEE505C9BC}
 
  - Execution

   [ ProcessID]  1172
   [ ThreadID]  1260
 
   Channel System
 
   Computer **Edited Out**
 
  - Security

   [ UserID]  S-1-5-18
 

- EventData

  SupportInfo1 1
  SupportInfo2 3961
  ProcessingMode 1
  ProcessingTimeInMilliseconds 24320
  ErrorCode 1612
  ErrorDescription The installation source for this product is not available. Verify that the source exists and that you can access it.  
  DCName \\**Edited Out**
  ExtensionName Software Installation
  ExtensionId {c6dc5466-785a-11d2-84d0-00c04fb169f7}