Re: Sound problems with DIM3000
It sounds like a software or registry glitch somewhere in XP. If it's possible to go back far enough, system restore is usually the easiest way to try and recover it.
One possibility: Start, Run, type services.msc in the run box. In the services list make sure Windows Audio Service is both started and automatic.
The volume control is handled by C:\Windows\System32\sndvol32.exe. If it's damaged somehow that might explain the volume icon problem. You might have a backup copy in your C:\i386 folder which you can use to replace the one in system32 (make sure to show all hidden files first), but if not you'd need to extract it from the CD.
'Tis a poor carpenter that blames his tools.