No navigable item in the destination block

Hi
using Dev6i.. i have to face the problem.(frm-40106).plzz help me how to solve this problem.
thankx in advance

Quoting the Online Help:
FRM-40106: No navigable items in destination block.
Cause: Runtime error. A GO_BLOCK statement references a block with no enterable items.
Action: Remove the statement or make at least one item in the block enterable.
either you are navigating to a block that has no item visible on the canvas, or all the items visible on the canvas are disabled.
Tony

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I am getting the above error. I can not make any item on the above block as navigable as the table on which block is based is just used for making business deciosins.
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