System Requirements
For the latest minimum requirements, please consult the support section at www.marratech.com

License
The Marratech client software is free to download and use.

How to Install
For step by step information on how to install the Marratech client, please consult the following:

• Quick Start Guide Windows
• Quick Start Guide Mac OS X

How to upgrade
You may keep the 5.0, 4.1, 4.0 or 3.4 version installed on your system. However, we recommend uninstalling them to avoid any possible confusion.

Marratech 5.1 will reuse the preferences from the previous version. If you would like to remove these preferences and start off from a completely new install, do the following:

	Simply remove the Documents and Settings/..username../.marratech folder.
	Simply remove the ~/.marratech directory
	Simply remove the Library/Marratech folder found in your user's home directory.

• Support for Marratech Free servers. (Read http://www.marratech.com/free/ for more details.)
• An audio-related issue was solved where participants within a meeting could randomly hang simultaneously.
• Built in support for multiple languages.
• Improved layout in the Preferences
• Improved repaint performance under Tiger for Mac OS X users.

Known issues in 5.1

• The MeetNow! functionality (aka Java Web Start Technology) enables the Marratech client to be download, installed, executed and join a meeting from a single click in a web browser. This relatively new technology must be enabled on your Marratech Manager. Furthermore, most problems with this can be fixed by clearing the cache in your Java console. Read the manual chapter for more details...
  
• When using MeetNow! on Windows with more than one active network interface (IPv6, or VPN), the client may lose connection after 8 hours due to an issue with the Java Virtual Machine on Windows from Sun Microsystems. This only affects Windows, MeetNow! and computers with more than one active network interface.
  
• Client must be shutdown and restarted when you change language.
  
• The audio test button does not work if the client is started via MeetNow.
  
• Keyboard shortcuts (mnenomics) in the translated versions are not perfect. (Still a learning curve for us)
  
• Chinese traditional and simplified are not completely translated yet. Our deadline passed before we got the update. This will be fixed in the next update.

• One window interface. The interface now integrates all windows. The Viewer and the Whiteboard can be switched from the lower left corner tab. This means users will need to press the lower tab button to view the Whiteboard.
  
• Walkie-Talkie Mode. To save bandwidth, increase voice quality and make the Video Follows Audio work, Walkie-Talkie Mode is default. To speak, you need to keep the microphone button pressed in with your mouse. If you want to keep it clicked in to work in other areas of Marratech, press CTRL while pressing the microphone button.
  
• Voice quality is now dynamically steered by the audio bandwidth limit set in the meeting room and the network conditions.
  
• You can now specify the capacity of your uplink, thus avoiding any possible saturation of your DSL/Cable connection, where upload is often slower than download.

• New name, Marratech Pro becomes simply "Marratech"!
• New name, Marratech E-meeting Portal becomes "Marratech Manager"!
• Walkie-Talkie Mode. To save bandwidth, increase voice quality and make the Video Follows Audio work, Walkie-Talkie Mode is default. To speak, you need to keep the microphone button pressed in with your mouse. If you want to keep it clicked in to work in other areas of Marratech, press CTRL while pressing the microphone button.
• One window interface. The interface now integrates all windows. The Viewer and the Whiteboard can be switched from the lower left corner tab. This means users will need to press the lower tab button to view the Whiteboard.
• Participant video size can be enlarged.
• Voice quality is now dynamically steered by the audio bandwidth limit set in the meeting room and the network conditions.
• Remote application control. Enables you to give control of your application to another participant.
• Improved application sharing. Our VNC based application sharing now uses a transparent rectangle to select what is to be shared.
  Additionally, Marratech 5.0 can connect to an external VNC server, enabling new training scenarios.
• Application sharing is now available for Linux users as well.
• AES 256 bit encryption ensures the privacy of your meetings with even higher encryption levels.
• Improved new video rendering code for Mac OS X.
• Now compatible with Mac OS X Tiger.
• Linux now has better support for selecting different audio devices if multiple are installed.
• Linux now has improved stability is compatible with more audio devices.

• Meeting rooms hosted on Manager 3.0 servers using AES 256 bit encryption will not be compatible with older versions of the client.
• Application sharing between 4.1.x and 5.x clients is not possible.
• Audio bandwidth limitation requires 5.x clients.
• DV cameras are not supported on Linux and Windows. DV video cameras (i.e. non webcams) work on Mac OS X, but consume more CPU.
• Mac OS X users need to use Mac OS X v10.3 or higher with all available updates. Jaguar is no longer supported.
• Marratech does not support UFS under Mac OS X. Please use the default HFS+
• The following libraries are required for Application sharing on Linux: gtk 2.0, gdk 2.0 If these libraries are missing, application sharing will be disabled and you can not share your desktop but you will still be able to view application sharing from others.