I have noticed that the pages made in Tinycontent/TinyD and Content (all modules based on tinycontent) makes the page/themes/ jump around on the screen when going forward and back if I´m using Firefox (in IE they are still).

This mysterium happens if I have the theme with limited width (say 800 px or something like that) and everything placed in the center of the page. If I set everything to the left the pages doesn´t jump. I have tried changing themes and the same thing happens.

Is this something anyone else have noticed? Solution?