Help required urgently

i have made a car racing game in Blender GE. it has a problem. when i play the game in the machine where i built the .exe file, it works perfectly.

but if i run the same game on any other machine, some of the graphics dont get displayed.

i feel the problem is becoz of improper packing of files BEFORE I BUILT THE EXE.
can i solve the problem by having the path of all the files set to abolute. and then build the .exe. or is it compulsary to pack all the files and then build the exe.

please help as soon as possible’
thanks in advance.

One solution is File-> External Data -> Pack into blend, than make runtime.