Version:           1.2.2 (using KDE KDE 3.2.3)
Installed from:    Debian testing/unstable Packages
OS:                Linux

It is impossible to create an object in Logical View if an object with the same name exists in the Use Case View,
while using the object from Use Case View in  the Logical View is prohibited. 

An example:
 I have a Use Case with an actor called "Foo". Now I need to express the use case in a more precise way - 
 via a sequence diagram. Ok, but in Umbrello, sequence diagrams are placed in the Logical View,
 and use cases are in Use Case View, and it seems like I cannot use items defined from the Use Case View
 in  the Logical View. And there's no actor item in the logical view. Ok, I think, I will just create a new object
 in my sequence diagram called "Foo". But, to my astonishment, I get an error dialog "That name is already being used".

If separate object pools in different views is a feature meant dy the developers, and it is not possible to use one object in different views, then the user must be able to use the same name for different views.