Win7-64 Photoshop CC blank Save As dialog, then crash, when working with video / frame animations

Question

Hi, I recently updated to CC from CS6 and am having issues when working with PSDs containing video layers, or are set up as frame animations:  When attempting to Save As, the dialog will be completely blank except for the Save and Cancel buttons.   If I press cancel, then return to Save As, CC then often crashes.
Here is the Error Event from Event Viewer:
Faulting application name: Photoshop.exe, version: 14.0.0.0, time stamp: 0x5176451b
Faulting module name: MediaCoreIF.DLL, version: 7.0.0.0, time stamp: 0x51573a21
Exception code: 0xc0000005
Fault offset: 0x00000000001fca98
Faulting process id: 0x750
Faulting application start time: 0x01ce9e1925a5045b
Faulting application path: C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)\Photoshop.exe
Faulting module path: C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)\MediaCoreIF.DLL
Report Id: db6d5f8f-0a0c-11e3-9df9-0026b9cc01d1
So far I am only having these issues if I have been working with video layers and then frame animations.  Frame animations in particular seem to cause instability as I can often work with video layers all day without a problem.  Then if I import video frames to layers, or open a PSD containing a frame animation, the Save As may not necessarily work.
Sometimes closing and restarting Photoshop will allow me to save again, but then sometimes a whole system reboot is required.  It is only temporary though.
I am not running antivirus software or other apps aside from what starts at boot.

Answer 1

Frustrating that this thread has petered out, since I'm having the exact same issue. Did you ever find a way to improved stability?
Also of note, the issue followed me across machines. Two weeks ago I purchased a new machine, figured if that didn't solve the problem nothing would... It didn't. :\
The only similar factors are that the machines both are 64bit Windows 7 (a fresh OEM install on the new box) and have nVidia-brand graphics cards. (Again, though - not the SAME graphics card, picked up a new one with the new machine.) No drive cloning was involved: this is completely new hardware, a fresh factory install of Windows 7, different antivirus (went from AVG to Avast), and new download of Photoshop CC from CreativeCloud.
Looks like our event details are quite similar, too.
Log Name: 
Application
Source:   
Application Error
Date:     
4/6/2014 1:57:39 PM
Event ID: 
1000
Task Category: (100)
Level:    
Error
Keywords: 
Classic
User:     
N/A
Computer: 
REDACTED
Description:
Faulting application name: Photoshop.exe, version: 14.2.1.570, time stamp: 0x52f4a9f2
Faulting module name: MediaCoreIF.DLL, version: 7.0.0.0, time stamp: 0x51573a21
Exception code: 0xc0000005
Fault offset: 0x00000000001fca98
Faulting process id: 0x1ca4
Faulting application start time: 0x01cf51c68639ec43
Faulting application path: C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)\Photoshop.exe
Faulting module path: C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)\MediaCoreIF.DLL
Report Id: 5268f22b-bdbd-11e3-b9df-d850e65afc6f