My BackSpace Beep is Gone?

[Chime Hart]

Hi All: Today I went from a Zabbly 6.18.4 to 6.18.7  but not only is my DecTalk 
in Speakup not finding a module, but my backspace beep is gone. Before there 
were pcspkr along with setterm where I could set the frequency to 1750 and 
length to 200. Anyway, running "beep" says cannot open device. Can any1 please 
suggest how to resume my quite  helpful backspace beep. Thanks so much in 
advance
Chime