-Appearance Control Panel: Under Fonts, change all fonts to Chicago & Disable "Smooth all fonts on screen." Under Sound, set Soundtrack to "none."-Energy Saver Control Panel: Set sleep time to "Never."-Memory Control Panel: Select "Custom" twice under Disk Cache and set it to 512k. You will see a warning regarding system performance. Do Not Panic! This warning does not affect Pro Tools' performance. 512k is the optimum setting. Set Virtual Memory and Ram Disk to "Off." -Monitors Control Panel: If using a 9500 or 9600 (or lower) Mac, set colors to 256. If using a G3 or G4, setting the color to "thousands" should be adequate. AV users should set the monitor attatched to the ABVB card to "millions."-Extensions Manager: 1.Under "Selected Set," select the OS Base Set (Listed by OS version...ex. OS 8.6 Base Set) 2.Select "Duplicate Set" and name the set "Pro Tools." 3.Add/enable: OMS Preferrred Device (control panel) Digidesign DSP Manager (ext) Digisystem INIT (ext) Open Music system (ext) Digidesign Stream Manager (ext) (if applicable/needed) Digidesign Output Drivers (ext (if applicable/needed) Digidesign Direct I/O (ext) (if applicable/needed - v5.01 and higher) Digidesign Sound (control panel) (if applicable/needed - v5.01/OS9 and higher)-Pro Tools/DAE Memory Allocation (Basic settings, based on 128-196 mb of RAM): In Digidesign folder>Pro Tools, 'get info' (Cmd-I)* on the Pro Tools application. Set the Preferred Memory to 30-50 mb (30000k-50000k) Minimum Memory should be left at the default (Enter a '0' if in doubt) In System Folder>DAE Folder, 'get info' (Cmd-I)* on the DAE application. Set the Preferred Memory to 40-60 mb (40000-60000k) Minimum Memory should be left at the default (Enter a '0' if in doubt) *NEVER 'lock' these "Get Info" windows-DAE Playback Buffer setting (DAE > File menu > Set Playback Buffer). Buffer size is dependent on your hardware. Use the following settings: Mix System - 2 D24 System - 2 Pro Tools III System - 0 PowerMix Engine - 8