Could you please let me know if you are working on a MAC or Windows ?
Is there a Video that you have in the Slideshow ?
If yes , what is the format of the video ?
Windows 7 64bit on a PC - no Video files involved - all tiff. I'm just using the Impromptu Slideshow function in the 'Window' menu - which worked perfectly fine before the latest patch was applied!
It's a known bug. Just go to the slideshow module and back to Library. The impromptu slideshow should work then.
Could you please try with a another collection of images, and then check.
Went from Library to Slideshow module and back again and used a different collection of images as suggested.
The only notable difference now is that the error message doesn't appear at all - the Impromptu Slideshow function still doesn't function at all, so not a solution for me I'm afraid.