Unwanted appearence change in Mail

so reinstalled growlmail today, , mail stuck looking this.

each message takes 2 lines, , subject column displays redundant information. did not change settings this. happened after reinstalled growlmail. whether or not uninstalling or installing did it, don't know. uninstalling again did not change anything. have time machine backup. preference file restore make go normal?

running snow leopard 10.6.8 on 13'' late 2009 macbook pro.

 

nevermind. fixed it, , had nothing growlmail. it's not bug, it's feature of mailbox plugin, must have turned on without realising

 

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