Creativity and Bipolar Disorder, Is There A Relationship?

Recently, someone stated that people with Bipolar Disorder are creative. Famous people past and present are cited as evidence and proof that this is true. However, deductive reasoning may be at work here leading to false conclusions. It goes something like this:

Source: http://www.mentalhelp.net/poc/view_doc.php?type=doc&id=43660&cn=4

lamictal and birth control lamictal rash photos lamictal and depression lamictal rash symptoms