Hi Kevin,
Thanks, I patched the Ptolemy II CVS tree with your change.
_Christopher
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    Hi all,
    
    Found a simple bugger at line 113 in vergil.tree.PTree.  Seems the test
    for if the path is null appears after its use in another condition. 
    Here's a little patch:
    
    Index: ptolemy/vergil/tree/PTree.java
    ===================================================================
    RCS file: /home/cvs/cvsanon/ptII/ptolemy/vergil/tree/PTree.java,v
    retrieving revision 1.33
    diff -w -r1.33 PTree.java
    113,116d112
    <                 if (path.getLastPathComponent() instanceof
    EntityLibrary) {
    <                     //this prevents a user from dragging a folder.
    <                     return;
    <                 }
    121a118,121
    >                 if (path.getLastPathComponent() instanceof
    EntityLibrary) {
    >                     //this prevents a user from dragging a folder.
    >                     return;
    >                 }
    
    
    Kevin
    
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