Brilliant, that did the trick.
Cheers!
I am also having this problem.
I have a dev license, and thus license for updates.
But since running the automatic update to 1.6.9, I can no longer “activate” the pro on my website – as in, it declares my username and/or pass for prettylinkpro to be invalid.
Any clue how to resolve this., so that I may once again use the dev licensed pro options?
My dashboard shows 1.6.9 installed (of the Lite, now, as it were), fyi, so I have not replaced that with the 1.6.9 form prettylinkpro download page…
