[development] delete menu not appearing

[Lluís]

I have developed several node types for an application, and in one of
them "delete" menu doesn't appear when viewing it; first I thought it
could be a permission problem, so I wrote:
function hook_access($op, $node) {
 return true; //debug
...
}

but nothing happend; then I tried with user 1 and it is the same (I
cleared all cache tables using phpmyadmin).
besides hook_delete and hook_access is there anything else necessary
for the menu to appear? From the administrative interface I can delete
the node without problems.

thanks

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