How to get the open shell singlet state (singlet biradical) of ozone (O3)

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3:52:14 AM PST - Fri, Dec 30th 2011
Dear Bert, I have tried "set mixang 30" to "set mixang 100", but failed to get the open shell singlet state of O3. I also tried to combine "set mixang 30" with reading vectors from triplet, but still failed. The final result always leads to the close shell singlet state. I have put in the input information of mine above. Have you tried ozone before and successful? If you were successful, can you paste your input file for me? Thanks a lot!