Welcome to the world of PICs.

The fuses or configs are set once at program time. Each chip has similar settings but some have more or less. ??

Example, the type of OSC used is set here, not the speed. Settings can be anything from internal, RC, crystal, or resonator. This is where the data sheet comes in handy.

The thread that Joe pointed to tells how to set the fuses in the code. When you read the thread and get to the post from misterE you will notice the *.inc file mentioned. The *.inc is the main fuse file for PBP. You can change things there and not have to put the settings in each code. Either way has advantages.

When you post problem code, it will help if you post all of it, not just the part you think is the problem, also it helps if you tell a little how you have it connected to other parts.