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O.P.  RE: [release]The Beeper release B4b (in English)
 In volume control of your sound card (control panel) there is a Internal Speaker control slidebar, check it's not silenced.  
 
I supose it's a windows configuration mismatch. You are not the only one that can't hear system beeps so I'm working on a version that uses normal speakers to make beeps. 
 
Greetings, 
 
Jordi 
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