Since it hasn't been reported by every member with virus software then I think it is isolated. Something similar happened before where peeps thought it was BYC and it turned out that a member had uploaded an image or something that was causing some problems with specific versions of virus software. Basically, anytime someone with that virus software visited that specific thread and saw the image it rang bells. We were able to get the members to tell us which thread they were on and deleted the images and the problems went away.
So, if this happens again, please keep very close note of the thread, post, etc. that you are on (copy the address / URL of the page) and PM me.
So, if this happens again, please keep very close note of the thread, post, etc. that you are on (copy the address / URL of the page) and PM me.