I posted this here instead of software  since users of version 2.4 of ther Mix Control were having latency arming issues , which according to the release notes, has been resolved. I am downloading it now.
 
Saffire Mix Control 2.4.1 Released on 12-20-11 15:27
New Features/Fixes:
- Resolved issue where track record arming was being delayed in some DAWs (Windows only)
- External sync source now correctly recalled in standalone mode (providing that a valid external clock source was present when the Saffire was powered off)
- Optical SPDIF snapshot settings now reload properly
- "Restore Factory Defaults" now restores ADAT settings when "Use ADAT as Optical SPDIF" was selected
- Title bar now appears when SMC is launched from RTAS Mix Control (Mac
 
It is located on the beta webpage

So far so good playback starts right away and so does record arm

Thanks for the alert.

Thanks for this MM!! Gonna go grab it now. 
  
Got it! Working fine so far.... 

Thx for posting.
 
If anyone notices any issues, please post...
 
V

There is a consistent one second delay when arming or disarming audio tracks: excellent, and well done on the part of Focusrite.

Saffire Mix Control 2.4.1 Released on 12-20-11 15:27

 
Just came back after focusrite.com site search for this release and I am not seeing
anything later than ver 2.4 of August 31, 2011.   Can someone post a link?
Thanks,
Dave 
Googled it and found albeit beta.. thanks for the heads up.. will "beta" test this version.
 
http://beta.focusrite.com/releases/saffire_mix_control/

Installed the 2.4.1 beta drivers yesterday morning. Did a few hours of recording/mixing last night in Sonar X1e. So far everything is working in a reliable, consistent manner.

I had put in a tech ticket with Focusrite about the issues, but never received a reply via email about the updated software. I just happen to find it when I went there on one of my regular visits.

Since there is no letter B in the version, I am assuming this is a ready for prime time release,,

I tried the new beta with my Saffire Pro 40.  My Pro 40 has a dropout problem after it heats up, but  I'm getting dropouts on playback while "cold" with the new beta version.  

I've tried different buffer settings and have it on 512 but still getting some type of dropout.  Sonar doesn't display a dropout, it just stops and I can press the space bar and it will continue playback from where it stopped. 
 
(Edited for %@#% typos)