We are trying to install RITTY on a true blue DOS 6.2x machine (Pentium II). It has a SoundBlaster 16 bit card. We know that either CONFIG.SYS or AUTOEXEC.BAT requires a SET= statement for the soundcard. Can anyone check their DOS computer and tell us the parameters of the SET= statement? Please reply direct so I don't miss it. W1TY at arrl.net Thanks Rick