if this trick works for Radeon 9200/9250 (RV280) cards
then is it possible to get working os9 2D accell on 
a radeon 9800 pro any of the cards above RV280 using a similar hack? 
editing the drivers themselves?
i hope that user Bolle can better document his process for us all to learn from?
which program was used to edit the extensions?
ie: Radeon 95x0 (R300), 9600 (RV350), 9800 Pro (R360)
Radeon 9500   Desktop   3/2003   150 nm   R300
Radeon 9500 PRO   Desktop   10/2002   150 nm   R300
Radeon 9550   Desktop   10/2003   130 nm   RV350
Radeon 9550 SE   Desktop   3/2003   130 nm   RV350
Radeon 9600   Desktop   10/2003   130 nm   RV350
Radeon 9600 PRO   Desktop   10/2003   130 nm   RV350 / RV360
Radeon 9600 SE   Desktop   10/2003   130 nm   RV350
Radeon 9600 XT   Desktop   10/2003   130 nm   RV360
Radeon 9700   Desktop   7/2002   150 nm   R300
Radeon 9700 PRO   Desktop   7/2002   150 nm   R300
Radeon 9800   Desktop   3/2003   150 nm   R350 / R360
Radeon 9800 PRO   Desktop   3/2003   150 nm   R360
Radeon 9800 PRO 128-bit   Desktop   10/2003   150 nm   R360
Radeon 9800 PRO DDR2   Desktop   3/2003   150 nm   R350
Radeon 9800 SE   Desktop   3/2003   150 nm   R350 / R360
Radeon 9800 XL   Desktop   3/2003   150 nm   R350
Radeon 9800 XT   Desktop   10/2003   150 nm   R360
 -- 
http://www.gpuzoo.com/GPU-ATI/index.htmlon an unrelated note a friend of mine used a 9550 in a Sawtooth and it worked without even flashing!
i was pretty surprised to hear.. but of course no 2d Accell in os9