B3D_SYSTEM_UNITS & B3D_UORS_PER_SYSTEM_UNIT in PSDS XM

I'm using PSDS XM v08.09.04.52

I received some .dgn files from an outside source, and the Resolution in the file is set to 12000 uors per Distance FOOT.  We typically use 25400 per INCH.  Our Db units are set to that as well.  When my designer places pipe in the file, obviously it comes in 25.4 times larger than it should be.

I found these variables:

B3D_SYSTEM_UNITS                                      INCH                      ! measurement units

B3D_UORS_PER_SYSTEM_UNIT                25400                    ! Conversion from/to MicroStation positional units

in this file: projdefe.rul

However, changing this to FOOT & 12000 respectively didn't solve the problem.  It just created a few errors for myself.

Can anyone direct me to the procedure for updating this, and getting my Db units to match the design file units?

Thanks,

Mike McGinnis