I installed/unzipped DeltaWalker but it won't start. Why?

The most likely reasons DeltaWalker would not start after you have installed or unzipped it are:

Wrong or Missing Java Virtual Machine

DeltaWalker requires a suitable Java 2 Platform to run. If no such JVM is installed on your machine, DeltaWalker will show a message box alerting you to this fact. Please download and install JRE 1.6 or newer.

Unsupported platform

Make sure your software and hardware configuration are among the ones DeltaWalker is certified to run on, as listed in the DeltaWalker Reference Platforms. For instance, DeltaWalker will not run on Windows 95.

Missing GTK (Linux-only)

If you in downloaded and installed DeltaWalker for Linux, you need to make sure that your Linux distribution has a correctly installed GTK+ 2.2.1 or higher.

New DeltaWalker Unzipped Over an Older DeltaWalker

While this may work, we strongly recommend that you avoid doing it. Choose one of the following, safer installation options:

Where possible use the installer for a given platform as it will most often do the right thing. For instance, before installing a copy of DeltaWalker , the Windows MSI installer will first uninstall an existing previous installation.
Unzip the new DeltaWalker installation in a folder, different than the folders of existing installations. If you are using the zip package, you can have multiple DeltaWalker installations side-by-side coexisting happily. These can be installations of different DeltaWalker versions.
When possible, use the Update Manager to keep your DeltaWalker installation up-to-date with the latest DeltaWalker updates published on the Deltopia's web site.

Insufficient Memory or Disk Space