Pops and clicks when using Helix as USB output on OSX Lion

[StruckingFuggle]

I've got a 1,1 Mac Pro running OSX Lion, and I use Logic Express.  I've installed the Mac beta driver, and can select Helix as input and output.  But when I'm monitoring recording or listening to playback I hear clicks and pops.  If I record something using Helix USB as the input, and then route that to a different audio device (Lexicon Lambda in this case), the recording doesn't have the pops/clicks.  So it seems to only affect playback output going to Helix from Logic.  

 

I don't hear the pops/clicks when I play Youtube or iTunes audio.  

 

Any suggestions?  Upgrading to Windows-based DAW is in my future, but not immediately.  I've been using Helix XLR out into the Lexicon to record, and that works fine.  

 

 

[aleclee]

Why did you install an old beta version? Try using the latest version of the OS X driver Get Download

[StruckingFuggle]

Same problem with the latest driver.

[spikey]

Not that it might affect the Helix driver (even thou its possible), can I ask why you are using a 6-year-old Mac OS? Is that the latest a Mac Pro can handle?

[StruckingFuggle]

Not that it might affect the Helix driver (even thou its possible), can I ask why you are using a 6-year-old Mac OS? Is that the latest a Mac Pro can handle?

It's the latest my Mac Pro 1,1 can handle. It's the 32 bit bios, which can be upgraded, but only through a convoluted process (which is unsupported and likely to brick the machine).