Since updating to 1.7.1.404 (Photo) on Windows 7 when using some of the NIK plugins, they start to load but then it turns to grey (the plugin screen) & Photo is then stuck & the only way out it to can Photo (end the process via the task manager). This has happened with the HDR & SilverFX. Others seem to be ok.
I am using the old (free) Google version of NIK.
Julie :-)