I am using dual monitors. When I go to edit properties of an item (dimension for example) the property dialog box appears on my second monitor but I can not edit any of the fields nor do any of the keyboard keys work properly. For example, if I press an arrow key to relocate the cursor the model rotates. However, if I drag the property window back to the main monitor (where solidworks is running) then the dialog box fields are accessible again.
Are you using the PropertyManager in its "undocked" state? When you say "if I drag the property window back to the main monitor" are you redocking the PropertyManger in its position on top of the FeatureManager, or are you simply grabbing the floating window by its header and moving it to a new location?