After installing Windows 8.1 Update(KB 2919355), PC is re-booted up when system sound on Windows is played.
In case that 24 bit is being selected at the setting of "Select the sample rate and bit depth to be used when running in shared mode" on Windows, PC is re-booted up when system sound on Windows is played.
Please check here for how to avoid it.
How do I authorize Cubase LE?
Cubase LE is authorized on the Steinberg website. Go to this page to get started.
Are TASCAM drivers compatible with Mavericks 10.9.5 and Yosemite?
According to Apple, OS X 10.9.5 includes heightened security measures that will also be part of OS X 10.10. These security measures will affect some TASCAM audio interfaces, so users are advised to be aware, and hold off on updating until further information is available
These products use Apple's built in CoreAudio driver. The Settings Panel installer is fully compliant with Apple's latest security measures.
The latest drivers are compliant, but testing is ongoing for these products:
The OS X 10.9 public beta drivers can continue to be used for these interfaces:
Cannot be used with the current driver (public or beta):
The MIDI input is not working on my US-200 or US-600 in Mac OS X.
Download and install this MIDI patch for Mac OS X and the MIDI input should start working again.
There is no MIDI input or output from my US-series interface when using it with Pro Tools 9 for Windows.
Pro Tools 9 for Windows must be run from the administrator's account for MIDI to function. Launch Pro Tools in 'run this program as an administrator' mode.
Pro Tools 9 for Windows will not launch with the US-series interface connected.
The latency setting must be the same in Pro Tools and in the US-series control panel. Change this in Pro Tools' Hardware Setup window, and in the US-series control panel.
How do I register my copy of Cubase LE?
Please be aware that this activation system is designed and controlled by Steinberg and not TASCAM.
The process above is taken directly from the Steinberg website. Cubase LE4 Cubase LE5