I got to Darkmoor for the first time today, and everything was going fine until I talked to Harker. When I did, I noticed that the vendor menu and little icons (Crown shop, menu chat, friends ect) started to flash. This persisted even when I stopped talking to him. I left Darkmoor, hoping to stop it, but in nightside, it only got worse. Quest helper started getting a weird blue colored graphical glitch on it. These glitches stop when I leave those areas, but I've tried reentering several times, only to have the glitch start up again after a while. I'm hoping that someone knows what's going on and how to stop it.