I am wondering if this is a virus or something. Several workstation on a domain periodically get a popup that says Global Message with a picture of a blue eye and says Waiting on New Message with a close box below that. Has anyone experienced this(see attached screen capture) and if so how do I get rid of it? It only stays up for 15-20 seconds and then it disappears. I have run Malwarebytes, Spybot Search and Destroy and Vipre Corporate antivirus on these workstations and they all come up clean.