Graphics problem or i need to do some changes in settings in catia?
check these and if it doesn't worked maybe it's a bad sector problem for graphical part of your catia program!
Check your tree like marked item in the pic for analysis that maybe activated. If it was activated you should delete from the tree.
your pic is something like below pic
If it happens when u r not in "shading with material" view mode surely you have some graphical problem with your program and it can be solved by re-installing that!