I have an HD5450 but can get only 2 of the three attached monitors to show a picture. Although I have not tried all combinations it seems that any two of the three will work. If, in CATLIST, I go to "manage monitors I get two marked as active and one in grey. Hovering the cursor over the grey one I get a minute grey symbol (like a padlock), but I cannot right click or drag this monitor to bring it into use. What have I done wrong?
All monitors are VGA. One is direct, one is via an HDMI/VGA adapter, the third is via a DVI/VGA adapter.