This program has been tested on 256 grey tone VGA, on 286, 486 and Pentium computers. It has been run from Windows 3.1, Windows 95, DOS 6._... The exercises have been field tested. If running the program from Windows, on a computer with about one megabyte of random access memory, the Mind Imaging exercise will exceed memory capacity. Removing all terminate and stay resident programs and running from DOS will solve the problem. Nonetheless if you would like to suggest any improvement. Or if you find any incompatible behavior with other programs, do not hesitate to write to your supplier. The type of system the program is running on: PC XT, PC AT, 286, 386, 486, Pentium... clock rate: 8 Mhz, 12 Mhz, 16 Mhz, 32 Mhz, 66 Mhz, 133 Mhz... the amount of RAM: 640 Kb, 1 Mb, 4 Mb, 8 Mb, 16 Mb... the hard disk free space, are necessary information to diagnose a problem. The effect of this software on your hardware is not guaranteed.