tmva crash

Dear Root Users

I am learning to use the multi variate analysis package of root. When I try to run the example in root/tmva/test/TMVAClassification.C it crashes. In the attached file I give the entire stack trace of all threads. I am running this on Snow Leopard 10.6.4 and the root version 5.26/00b. The gcc version is 4.2.1.

Any help would be greatly appreciated

thanks

raghava