Trouble with Assemblies

Hi everyone.  My name is Ben and I am new to the forum.  I am having some difficulties with solidworks 2012 (win 7, 64).  I have about 6 parts that I have created an assembly with.  The problem is, when I re-open the assembly, it is blank because it "cannot locate part files".  I have searched the forum and read into a few posts...One solution is to open all the part files first, then open the assembly.  This works, however, it is time consuming  and I am going to be adding more parts and also some routing, so I was looking for a more thorough solution.  It also freezes a lot using this process.  My part files are saved on a network, because we are not allowed to write to the hard drive.  Any help would be much appreciated!!

Thank You

SolidworksEducator Student