I have some more information on the problem with slow response on Win8.1 systems. My computer had developed problems with licenses for apps bought or downloaded from the Windows Store and there were some problems with my RTC (real-time clock) and with keeping SkyDrive in synch.
I backed up my system, then tried "Refresh your PC" where Win 8.1 is reinstalled over the existing installation while not changing any installed programs or user files. Unfortunately, the problem with app licensing was still present, so I decided to "Reset Windows" which deletes the entire C: drive and installs Windows from scratch.
Once the new installation was finished, I installed Office 365 (because I needed the license keys in Outlook) and the latest 335.23 nVidia driver (because I wanted both monitors active), then I installed PD12. With the original released version and the current video driver, the dreaded green "Rendering..." line kept appearing, so I installed the 2626 beta patch. No content packs or 3rd party FX were installed, and I checked to see if the editor responded differently to opening the Modify window from a timeline clip.
I found that it still took many seconds to display the Modify window, and the video lagged quite significantly when I dragged the scrubber to a new place.
Basically, starting from scratch with a brand new Win8.1 installation did not change the slow response issue I've since installed all the related PD12 add-ons and run Windows Update, and there's no additional improvement or slowdown that I can see.
I'm happy that the full reinstall cured the app licensing and SkyDrive issues, but the RTC issue of the system clock continually losing time is still there. In any case, we still need CL to figure out and fix the slow responsiveness issue as it's present on a brand-new install.
YouTube/optodata
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