This is the same  problem .I tried  to get help for. and gave up.
must me windows 8. that"s the problem .

markiv2290
Yesterday after my post I sent an email to Focusrite's and Cakewalk's respective tech supports.
 
I got an email this morning from Focusrite : they have been able to reproduce the issue on their end and are looking into it
 
In the interim, I'm planning to clean-install Windows 7 tonight on the rig to see if Windows 8.1 has something to do with it...

Great - ask them to post here! Tell them I miss 'em...
BTW I think you will get the same with Windows 7 if memory serves me.
 
Cheers

Alex

I wanted to bump this and check how things were going.

I've emailed Focusrite chasing this one up....  If people haven't emailed Focusrite about this yet I suggest they do it (more contact = more eyeballs).


http://uk.focusrite.com/answerbase/contact
 
Was slightly taken aback that they released a new version of Mix Control that was Mac only.
 
Thanks..

Hi All,
 
We have acquired some Focusrite hardware for testing, and indeed were able to reproduce the issue. 
Without too much extensive testing (meaning at this point, I've only tried this on Windows 8.1), I was able to work around the issue with the following steps:
 

1. Go to Control Panel > Sound
2. In the Playback tab Be sure "Speakers (Saffire Audio)" is set to the Windows Default Device (right-click the device and select Set as Default Device)
3. With "Speakers (Saffire Audio)" Selected, click Properties. 
4. In the Advanced tab, be sure the Default Format is set to 16- or 24-bit, 96000 Hz
5. Click Apply
6. Repeat steps 2-5 in the Recording tab, if necessary.
7. Launch Saffire Mix Control
8. Be sure the sample rate is locked at 96kHz
9. Open a 96kHz project in SONAR or create a new one. 

What we're doing here is making sure that SONAR, Windows, and the Focusrite hardware are all in agreement with one another at 96kHz. 
 
In SONAR Platinum, the issue appears to be fixed, such that if Windows sees the Saffire set to a different sample rate, as long as Saffire Mix Control and SONAR are set to 96kHz, the project operates as expected. 
 
I will certainly be updating this post as the testing continues. 

Here's an update.
I'm running Saffire MixControl v3.7 now.
The issue seems to have been fixed
Thanks to all who contributed.