Kensington SlimBlade Trackball doesn't work on Mac OS X Mavericks

console.md

Steps to reproduce a problem:

1. Start Safari.
2. Open any Web page.
3. Shift Kensington SlimBlade Trackball to View mode.
4. Twist the ball to zoom up the page.

Result:

• Zooming is suddgenly stopped.
• The icon for Kensington SlimBlade Trackball in the menu bar becomes gray. It will be restored to black after a few seconds.
• The following lines are recorded in system log.

2014/01/26 0:26:45.367 SlimBladeUIAgent[602]: CGSGetWindowTags: Invalid window 0x70
2014/01/26 0:26:45.000 SlimBladeUIAgent[602]: dyld: lazy symbol binding failed: Symbol not found: _CGSGetWindowProperty
  Referenced from: /Library/Bundles/Kensington/SlimBladeUIAgent.app/Contents/MacOS/SlimBladeUIAgent
  Expected in: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
2014/01/26 0:26:45.000 SlimBladeUIAgent[602]: dyld: Symbol not found: _CGSGetWindowProperty
  Referenced from: /Library/Bundles/Kensington/SlimBladeUIAgent.app/Contents/MacOS/SlimBladeUIAgent
  Expected in: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
2014/01/26 0:26:45.561 com.apple.launchd.peruser.501[297]: (com.kensington.SlimBladeUIAgent.48432[602]) Job appears to have crashed: Trace/BPT trap: 5
2014/01/26 0:26:45.663 ReportCrash[632]: Saved crash report for SlimBladeUIAgent[602] version 1.0.0 (25) to /Users/kana/Library/Logs/DiagnosticReports/SlimBladeUIAgent_2014-01-26-002645_avril.crash