emulation is SLOOOOOOOOOWWW!, MS say in the DX sdk documentation that it should only be used by developers checking if effects not supported by their system will display correctly on systems that do support it, it was no use in classic anyway, since even if you used "set emulation on" the program wouldn`t run unless you had 3D acceleration of some sort, it was only ever meant for diagnostics in C++ programs afaik, nobody ever used it in DB anyway (basicaly cos it was of no use to anyone), just remove the instruction and continue reading (oh! and check pages 16/17 in the user manual for pro).
Mentor.
PC1:XP, P4 3ghz, 1gig mem, 3x160gig hd`s, Radeon 9800pro, 6 way sound.
PC2: Linux, AMD 2ghz, 512mb ram, Nvidia GeForce4mx, 16 bit SB.
PC3: XP, laptop, intel 2.6ghz celeron, ATI 9000igp, 256mb