-------------------------------------- Gray Scale Management for EGA Displays -------------------------------------- Toshiba has provided two utilities, XCHAD and DSGSM, to help you control the way your computer converts colors into levels of gray on your flat panel screen. XCHAD: There may arise situations when two adjacent colored regions on your screen are displayed at the same or similar gray levels. This will make it difficult or impossible to distinguish the two regions. For example, suppose an application displays text on your screen such that the color of the text and the color of the text background map to the same gray level. This will cause the text to blend in with the background color. XCHAD is used to adjust the way colors are converted into levels of gray. Please refer to your computer's reference manual for more information on how to use this program. XCHAD has been updated so that it is compatible with MS-DOS 5.0. If you have a previous version of XCHAD on your computer you should replace it with the updated version on the Diagnostics and Supplemental disk. XCHAD consumes about 26,000 bytes of memory when loaded as a Terminate and Stay Resident program (TSR). If you are running on a 386 machine (such as the T5100) you can use a 386 Expanded Memory Manager such as MS-DOS 5.0's EMM386 to place TSRs such as XCHAD into an Upper Memory Block (above 640K). This will provide more memory to run your application programs. Please refer to your MS-DOS 5.0 User's Manual for more information on how to use EMM386 to load XCHAD and other TSRs into this memory region. Note that XCHAD does not necessarily have to be run as a TSR. Please refer to your computer's reference manual for more information on the operation of XCHAD. DSGSM: DSGSM is the DOS Shell Gray Scale Manage. This utility is a Terminate and Stay Resident (TSR) program intended for use with the Task Swapping function of the DOS 5.0 Shell (DOSSHELL). The DOS 5.0 Shell allows the user to do task swapping between several active applications. DSGSM will preserve the individual color-to-gray level mappings for each active application. You will need DSGSM only if you use the DOS Shell Task Swapper and you use XCHAD to change the color-to-gray level mappings. You must invoke DSGSM before starting the DOS 5.0 Shell. This is done by entering the following command: DSGSM An installation message will appear on your screen to indicate that DSGSM is now loaded. DSGSM consumes about 4,000 bytes of memory when loaded as a TSR. If you are running on a 386 machine (such as the T5100) you can use a 386 Expanded Memory Manager such as MS-DOS 5.0's EMM386 to place TSRs such as DSGSM into an Upper Memory Block (above 640K). This will provide more memory to run your application programs. Please refer to your MS-DOS 5.0 User's Manual for more information on how to use EMM386 to load DSGSM and other TSRs into this memory region.