Can't mux mp4 in MeGUI

[Ruriko]

I can't mux my video into mp4. I have already updated and it still doesn't work

[Error] Log
-[Information] Versions
--[Information] MeGUI Version : 1989 (svn)
--[Information] OS : Windows Seven x64 (6.1.0.7600)
--[Information] Latest .Net Framework installed : 2.0 SP2 (2.0.50727.4927)
--[Information] Avisynth Version : 2.5.8.5 (12/21/2008 9:46:54 PM)
-[Information] Update detection
--[Information] [4/7/2011 2:15:52 AM] Connecting to server: http://megui.org/auto/stable/
--[Information] [4/7/2011 2:15:53 AM] All files are up to date
-[Error] Log for job3 (mux, [Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].264 -> [Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A]-muxed.mp4)
--[Information] [4/7/2011 2:16:17 AM] Started handling job
--[Information] [4/7/2011 2:16:17 AM] Preprocessing
--[Information] Job commandline: "C:\Users\Administrator\Downloads\MeGUI_1989_x86\tools\mp4box\mp4box.exe" -add "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].264:fps=23.976" -add "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].m4a#trackID=1" -tmp "C:\\Users\\Administrator\\Downloads" -new "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A]-muxed.mp4"
--[Warning] [4/7/2011 2:16:17 AM] Because of an error the file C:\Users\Administrator\Downloads\MeGUI_1989_x86\tools\mp4box\mp4box.exe has been deleted.
--[Error] Error starting job
---[Error] Exception message: starting job failed with error 'The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log or use the command-line sxstrace.exe tool for more detail'
---[Error] Stacktrace: at MeGUI.core.gui.JobWorker.startEncoding(TaggedJob job)
---[Error] Inner exception: null
--[Warning] [4/7/2011 2:16:17 AM] Start update detection in order to resolve the error.
-[Error] Update detection
--[Information] [4/7/2011 2:16:18 AM] Connecting to server: http://megui.xvidvideo.ru/auto/stable/
--[Error] [4/7/2011 2:16:39 AM] Could not connect to server http://megui.xvidvideo.ru/auto/stable/
--[Information] [4/7/2011 2:16:39 AM] Connecting to server: http://megui.org/auto/stable/
--[Information] [4/7/2011 2:16:39 AM] There is 1 file which can be updated.
--[Information] [4/7/2011 2:16:44 AM] Updating mp4box. File 1/1.
--[Information] [4/7/2011 2:16:45 AM] Update completed
--[Information] [4/7/2011 2:16:45 AM] Files which have been sucessfully updated: 1
-[Error] Log for job3 (mux, [Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].264 -> [Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A]-muxed.mp4)
--[Information] [4/7/2011 2:17:00 AM] Started handling job
--[Information] [4/7/2011 2:17:00 AM] Preprocessing
--[Information] Job commandline: "C:\Users\Administrator\Downloads\MeGUI_1989_x86\tools\mp4box\mp4box.exe" -add "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].264:fps=23.976" -add "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A].m4a#trackID=1" -tmp "C:\\Users\\Administrator\\Downloads" -new "C:\Users\Administrator\Downloads\[Hatsuyuki-Tsuki]_Hanasaku_Iroha_-_01v2_[1280x720][1D24C95A]-muxed.mp4"
--[Warning] [4/7/2011 2:17:00 AM] Because of an error the file C:\Users\Administrator\Downloads\MeGUI_1989_x86\tools\mp4box\mp4box.exe has been deleted.
--[Error] Error starting job
---[Error] Exception message: starting job failed with error 'The application has failed to start because its side-by-side configuration is incorrect. Please see the application event log or use the command-line sxstrace.exe tool for more detail'
---[Error] Stacktrace: at MeGUI.core.gui.JobWorker.startEncoding(TaggedJob job)
---[Error] Inner exception: null
--[Warning] [4/7/2011 2:17:00 AM] Start update detection in order to resolve the error.
-[Information] Update detection
--[Information] [4/7/2011 2:17:00 AM] Connecting to server: http://megui.org/auto/stable/
--[Information] [4/7/2011 2:17:01 AM] There is 1 file which can be updated.

[Lighto]

Try MeGUI>Options>Update> *right click mp4box* > reinstall > *click update*

[Ruriko]

I tried and still doesn't mux. If I use the older version of megui it works fine but the latest version doesn't work

[Floatingshed]

I've been having similar problems. Changing the version of mp4box to an earlier version seemed to fix it. Can't remember which version I used (I'm at work now) but a little experimenting should help...