Yeah, Ok I know a load of you know how to do this, but given EA's complete inability to fix the damn render mode, please find attached here a zip containing a modified config.dat for that render_every_ai_smoothness.
1) Unpack the zip
2) Replace the config.dat in C:\Program Files\EA SPORTS\2006 FIFA World Cup (TM) Demo with the one you just unzipped
3) Love the smoothness
Have fun peeps
Cheers
PS: I used winrar to create the zip, boards dont seem to allow .rar