This is my first post/cry for help on here. I have recently purchased a second hand 1d Mkiv, when i view a shot on the LCD Monitor I can magnify it,but when I try to reduce it using the appropriate button the LCD just goes blank! this never happened with my old 7d, is this normal on the 1d Mkiv or do I have to go into settings to correct it. if so a little help would be ever so welcome.
Many Thanks in advance.