17687 Exposure Head HEAD: stroke clock frequency invalid, aborting download Thermal Bipolar LV board only (never shipped) so this error should never occur. If it does check MPE firmware head firmware compatibility and look at error code to see if it realy is this error. Call service. Only relevant to bipolar LV drivers which never shipped so this error should never occur. ..\..\ShowAllErrors.htmFirmware 0 Error Index ..\..\ShowAllCommands.htmFirmware 0 Command Index ..\..\ShowAllNVS.htmFirmware 0 NVS Index Updated: Wed Jul 16 19:33:41 2008 PST