As already mentioned on threads in Announcements, the reasons for the guidelines are pretty well noted. OS, I curently see nothing wrong with you sig but I have a wide monitor. Some people with smaller monitors, may have to scroll sideways because your banner is 633 wide. That is also the problem with tall banners and excessive lines of text. They make the page too long on large threads. Is that a mahor issue? No, but it is an inconvenience. In the case of the wide banner, it is more of an inconvenience as you have to scroll sideways not only for that particular members post, but for every post on that thread. That becomes a real hassle. Maybe 400 wide is to narrow but much larger than that can become an annoyance to some. On my old desktop, with a 15" monitor, your banner takes it right to the side if I have favorites open on the side. Any wider and it would scroll. A lot of latops have 15" or smaller monitors so it becomes a problem for them.