Hi, PC_confused,

I suspect, given your description and screenshot, that "imgquick.com" may be a source that Lithium (the forum software Norton uses) employs to manage images in the posts. This would cause this to appear to be the only post this happens with if it were the only post you view that has embedded images.

In any event, cookies are not a malware threat--they're just a mechanism that websites use to store data so they can read it again the next time you visit. This can be a "threat" if it includes unencrypted sensitive information like your username and password, or if other affiliated sites can use it to get a picture of your browsing habits and online interests. But it is certainly nothing you need to worry about in this context.

HI PC_confused,

Are you still getting this?  I do not see any images listed that are from imgquick.com.