This implementation uses an MDI-style interface. The listener and graphics windows are subwindows of an MDI client window. Menus appear in the client window's menu bar. The implementation is quite similar to the Macintosh version. This note assumes you are familiar with the description of the Macintosh version given Appendix B.2 of Tierney (1990).
The current implementation is experimental; the current release at the time of writing is 2.3 Alpha 6. I have only tested this version on a 386SX notebook with 3MB of memory and a math coprocessor. Please let me know if you run into any problems. A detailed description of the problem and the hardware configuration would be most helpful.