Using the TIGA Display Driver ------------------------------- If you are using the TIGA display driver, you must load the TIGACD.EXE MS-DOS driver manually before running Setup to upgrade Windows. Otherwise, Windows will not upgrade your system properly. After successfully setting up Windows, you can increase the amount of conventional memory available to non-Windows applications when Windows is running in 386 enhanced mode by loading TIGACD.EXE from the WINSTART.BAT file. The WINSTART.BAT file runs only in 386 enhanced mode. If you want to run Windows in standard mode, you must load TIGACD.EXE manually. For more information, see the README.WRI online document. .