My copies of Speed and Coral Reef IMAX WMVHD DVDs have just turned up. Started watching them on my PC, and finding my eyes are getting tired watching. Running on a 21" monitor at 1280x960 (film letterboxed into 1280x720) at 85Hz Also got it on other HDTV material - Harry Potter CoS and StarGate Atlantis. Hopefully i won't get this when i show it on a projector (still waiting to get my projector once my house move is completed). Has anyone else experienced this?