Thanks for the caution.
I've used PayPal a fair amount over the past six or seven weeks, so I checked my drive. I seem to be clean.
ryck
It's PayPal Shopping that's spawning the cookie, ryck, so if you either don't get redirected from PP's logout page to PPS or close the logout page before the redirect begins you don't get the cookie.
And, on the other hand, living in Canada, you may be dealing with a different entity than the one with which I'm dealing.
