Arduino was running fine under Windows 7/64. However, when I upgraded to Windows 10, only the Arduino flash screen would come up for a moment, and then nothing.
I've installed the latest version of Arduino (1.6.7) and still have the same problem.
Strangely enough, aurduino_debug.exe does run.
I've searched the forum and web and found many instances of similar problems (flash screen only), but no applicable solutions.
Any help will be greatly appreciated.