Here is the beta bundle for Desktop v3.6 OS X:

https://www.dropbox.com/s/r08xnn9gn8....0.64.dmg?dl=0

If you prefer Windows 8 please see the download link below for 8.1 64 bit and 32 bit respectively:

https://www.dropbox.com/s/18zmm9rap4...stall.exe?dl=0

https://www.dropbox.com/s/2x3e7274be...stall.exe?dl=0

Once you have downloaded and installed the preferred version of Desktop please update your firmware. Following that reinstall Desktop v3.7 and double check that your firmware is fully up to date.