All of a sudden I cannot hear any ATC transmissions. I can see the messages scroll across the screen, but, I cannot hear anything. All other sounds work fine. I tried adjusting the ATC slider in the "sound" options, but I still cannot hear anything.What happened? Any ideas? Thanks

Check to see if you lost your audio CODECs for the compressed sound. In Win98, select start, settings, control panel, multimedia, devices tab, "+" by Audio Compression Codecs and look for:Microsoft IMA ADPCM CODECMicrosoft ADPCM CODECMicrosoft PCM ConverterIf missing or you want to reinstall, select the Add/Remove Programs in control panel, select Windows Setup, select Multimedia, Details, and select the Audio Compression and any other items you want to install, select OK, and follow the instructions. You may need your Win98 CD.For WinXP, insert your WinXP CD into your CD-drive and conduct a recovery/reinstall.

>Check to see if you lost your audio CODECs for the >compressed sound. In Win98, select start, settings, control >panel, multimedia, devices tab, "+" by Audio Compression >Codecs and look for: >>Microsoft IMA ADPCM CODEC >Microsoft ADPCM CODEC >Microsoft PCM Converter >>If missing or you want to reinstall, select the Add/Remove >Programs in control panel, select Windows Setup, select >Multimedia, Details, and select the Audio Compression and >any other items you want to install, select OK, and follow >the instructions. You may need your Win98 CD. >>For WinXP, insert your WinXP CD into your CD-drive and >conduct a recovery/reinstall. Thanks wsieffert: My friend, your suggestion worked like a charm. I now have my ATC sound back. Many thanks.