GLK|Shatter

Under Windows2000 I only get 20-30 FPS in Demo1. My system: Pentium II 450 Mhz 256 MB PC-133 SDRAM ASUS P3B-F Adaptec 2940 U2W Wicket3d Voodoo2 12 MB 3com 3c905B Fast Ethernet NIC FritzCARD PCI SB Live! Windows 2000 professional NVidia 5.22 Treiber Quake 3.20 installed from CD (nothing is overclocked) I have all done, what Xiven has posted. My question: What must I do, to get more FPS?