Changelog Build 23567 (1.6.8, stable):
   [bugs fixed]
   * Fixed occasional crash if display panes are refreshed while editing the
     filter list.
   * Fixed hang if VirtualDub is the active application and attempts to refresh
     the display panes when a display mode switch occurs.
   * Display panes did not always update properly when seeking if Direct3D mode
     was enabled and updating the frame took a lot of CPU time.
   * Direct3D display mode could be activated if checked even if the option was
     grayed due to DirectX support being disabled.
   * Capture: Fixed crash if capture is attempted with audio enabled but audio
     isn't present or is in an incompatible format.
   * Reversed direction of mouse wheel action to be consistent with Windows.
   * Hex editor's Extract Segment command would sometimes extract the wrong
     segment due to repainting the main pane during the extract.
   * CLI interface app didn't exit if console was empty prior to invocation due
     to overzealous Explorer detection. This is now only done if no arguments
     are supplied.
   * Fixed crash in MPEG-1 parser when encountering a pack with a too-short
     length, such as zero.
   * Audio codec errors sometimes reported the wrong source of the error (i.e.
     decompressor vs. compressor). 

   [regressions fixed]
   * Pixel shaders were disabled in Direct3D bicubic mode due to debug code
     mistakenly left in.
   * MRU list sometimes didn't resort properly when reopening a recently opened
     file.