1. Download Catalyst 10.4 or earlier
2. Start install so it will extract files to C:\ATI\Support
3. Cancel installation
3. Copy the file C:\ATI\Support\10-3_xp32_dd_ccc_wdm_enu\Packages\Drivers\Display\XP_INF\B_96537\atioglxx.dl_ file to your TrackIR5 installation folder (default is C:\Program Files\NaturalPoint\TrackIR5)
4. rename the copied file to atioglxx.dll
5. start TrackIR and it should work
