Selenium IDE - can't select "table" tab

Ca开发者_运维百科n someone tell me why I can't select the "table" tab?

Here is a pic:

alt text http://img110.imageshack.us/img110/935/imgzx.jpg

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What "Format" are you using? The table is available in HTML only. I think.

Select Options/Format/HTML from the menu and the Table tab should be activated.