Mac problem

For some reason I am now unable to open Jalview on my mac os 10.5.7 from
either the dock icon or from the finder. I have the latest Java and have
tried a number of times to uninstall and reinstall Jalview. When I try to
open the application, it just seems like nothing happens (no messages etc.).
Any thoughts?

Thanks,
Mark

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--
Mark E. Drew, Ph.D.
Assistant Professor
Division of Infectious Diseases
Center for Microbial Interface Biology
The Ohio State University Medical Center
Biomedical Research Tower, Rm. 1020
460 W. 12th Ave.
Columbus, OH 43210
Phone: 614-247-5337
Fax: 614-292-9616