System Requirements

Desktop (PC) S-View:

OS: Palm OS 3.5 and higher. New devices usually have Palm OS 5.x
Memory: S-View (Palm) is a very small application (about 180 K). However, when running the application creates an image cache file. The size of this file depends on the color and screen resolution (pixel size). On older devices it can be about 200-300K. On newer devices with a big screen (e.g. Tungsten TX 320x480 pixels) the image cache file can be up to ~ 1.5 Mb.
After finishing your work you can free up this storage memory by calling command "Clean cache" if your device is running low on memory. If there is not enough free memory S-View will try to switch to the monochrome mode (that requires much less memory to operate).
Also, please keep in mind that even if you open a drawing from a file from the external card, a temporary copy of this file is created on the device. So there should be enough free space on the device to accommodate this temporary copy. This copy is automatically deleted when you stop working with the file.