form_set_error used in a block form displays the error in the wrong place

Thank you for taking the time to look at this.
My module displays a form in a block. I perform some basic validations and set an error using form_set_error.
But the message displays in the wrong place (in the main content rather than next to the form in the block) . I have been searching for a solution to this problem for hours now but to no avail. Any idea what I am doing wrong?
This is the form

<form action="/drupal3/node/62"  accept-charset="UTF-8" method="post" id="blockquiz-render-question-form">
<div>
<p>This is the question</p>
<div class="form-radios">
<div class="form-item" id="edit-tries-1-wrapper"> <label class="option" for="edit-tries-1"><input type="radio" id="edit-tries-1" name="tries" value="1"   class="form-radio error" /> <span class="blockquiz_answer_text"><p>Answer 1</p> </span></label>
</div>
<div class="form-item" id="edit-tries-2-wrapper"> <label class="option" for="edit-tries-2"><input type="radio" id="edit-tries-2" name="tries" value="2"   class="form-radio error" /> <span class="blockquiz_answer_text"><p>Answer 2</p>
</span></label>
</div>
<div class="form-item" id="edit-tries-3-wrapper"> <label class="option" for="edit-tries-3"><input type="radio" id="edit-tries-3" name="tries" value="3"   class="form-radio error" /> <span class="blockquiz_answer_text"><p>Answer3</p>
</span></label>
</div>
</div><input type="hidden" name="qid" id="edit-qid" value=""  />
<input type="submit" name="op" id="edit-submit" value="Answer Quiz"  class="form-submit" />
<input type="hidden" name="form_build_id" id="form-f6a5cab0ce306b63e12dc45ab3deb8c2" value="form-f6a5cab0ce306b63e12dc45ab3deb8c2"  />
<input type="hidden" name="form_token" id="edit-blockquiz-render-question-form-form-token" value="95ea6d5102d3e9cbc882bcad6a630675"  />
<input type="hidden" name="form_id" id="edit-blockquiz-render-question-form" value="blockquiz_render_question_form"  />

</div></form>

And this is the form_set_error code

	if ($form_state['values']['tries'] == '')
		form_set_error( 'tries', t('Your answer could not be recorded because you did not select any of the choices.'),TRUE);