Redmine

Hello, when I try to view a gantt chart, I get an error. The logfile shows the following:

Processing IssuesController#gantt (for 10.10.10.41 at 2010-04-22 14:49:55) [GET]
  Parameters: {"project_id"=>"pf", "action"=>"gantt", "controller"=>"issues"}
Query::StatementInvalid: Mysql::Error: Column 'start_date' in where clause is ambiguous: SELECT `issues`.`id` AS t0_r0, `issues`.`tracker_id` AS t0_r1, `issues`.`project_id` AS t0_r2, `issues`.`subject` AS t0_r3, `issues`.`description` AS t0_r4, `issues`.`due_date` AS t0_r5, `issues`.`category_id` AS t0_r6, `issues`.`status_id` AS t0_r7, `issues`.`assigned_to_id` AS t0_r8, `issues`.`priority_id` AS t0_r9, `issues`.`fixed_version_id` AS t0_r10, `issues`.`author_id` AS t0_r11, `issues`.`lock_version` AS t0_r12, `issues`.`created_on` AS t0_r13, `issues`.`updated_on` AS t0_r14, `issues`.`start_date` AS t0_r15, `issues`.`done_ratio` AS t0_r16, `issues`.`estimated_hours` AS t0_r17, `issues`.`parent_id` AS t0_r18, `issues`.`root_id` AS t0_r19, `issues`.`lft` AS t0_r20, `issues`.`rgt` AS t0_r21, `issues`.`position` AS t0_r22, `issues`.`story_points` AS t0_r23, `issues`.`remaining_hours` AS t0_r24, `issue_statuses`.`id` AS t1_r0, `issue_statuses`.`name` AS t1_r1, `issue_statuses`.`is_closed` AS t1_r2, `issue_statuses`.`is_default` AS t1_r3, `issue_statuses`.`position` AS t1_r4, `issue_statuses`.`default_done_ratio` AS t1_r5, `projects`.`id` AS t2_r0, `projects`.`name` AS t2_r1, `projects`.`description` AS t2_r2, `projects`.`homepage` AS t2_r3, `projects`.`is_public` AS t2_r4, `projects`.`parent_id` AS t2_r5, `projects`.`created_on` AS t2_r6, `projects`.`updated_on` AS t2_r7, `projects`.`identifier` AS t2_r8, `projects`.`status` AS t2_r9, `projects`.`lft` AS t2_r10, `projects`.`rgt` AS t2_r11, `trackers`.`id` AS t3_r0, `trackers`.`name` AS t3_r1, `trackers`.`is_in_chlog` AS t3_r2, `trackers`.`position` AS t3_r3, `trackers`.`is_in_roadmap` AS t3_r4, `users`.`id` AS t4_r0, `users`.`login` AS t4_r1, `users`.`hashed_password` AS t4_r2, `users`.`firstname` AS t4_r3, `users`.`lastname` AS t4_r4, `users`.`mail` AS t4_r5, `users`.`mail_notification` AS t4_r6, `users`.`admin` AS t4_r7, `users`.`status` AS t4_r8, `users`.`last_login_on` AS t4_r9, `users`.`language` AS t4_r10, `users`.`auth_source_id` AS t4_r11, `users`.`created_on` AS t4_r12, `users`.`updated_on` AS t4_r13, `users`.`type` AS t4_r14, `users`.`identity_url` AS t4_r15, `enumerations`.`id` AS t5_r0, `enumerations`.`name` AS t5_r1, `enumerations`.`position` AS t5_r2, `enumerations`.`is_default` AS t5_r3, `enumerations`.`type` AS t5_r4, `enumerations`.`active` AS t5_r5, `enumerations`.`project_id` AS t5_r6, `enumerations`.`parent_id` AS t5_r7, `versions`.`id` AS t6_r0, `versions`.`project_id` AS t6_r1, `versions`.`name` AS t6_r2, `versions`.`description` AS t6_r3, `versions`.`effective_date` AS t6_r4, `versions`.`created_on` AS t6_r5, `versions`.`updated_on` AS t6_r6, `versions`.`wiki_page_title` AS t6_r7, `versions`.`status` AS t6_r8, `versions`.`sharing` AS t6_r9, `versions`.`start_date` AS t6_r10 FROM `issues`  LEFT OUTER JOIN `issue_statuses` ON `issue_statuses`.id = `issues`.status_id  LEFT OUTER JOIN `projects` ON `projects`.id = `issues`.project_id  LEFT OUTER JOIN `trackers` ON `trackers`.id = `issues`.tracker_id  LEFT OUTER JOIN `users` ON `users`.id = `issues`.assigned_to_id AND  (`users`.`type` = 'User' OR `users`.`type` = 'AnonymousUser' )  LEFT OUTER JOIN `enumerations` ON `enumerations`.id = `issues`.priority_id AND  (`enumerations`.`type` = 'IssuePriority' )  LEFT OUTER JOIN `versions` ON `versions`.id = `issues`.fixed_version_id WHERE (((issues.tracker_id IN ('4')) AND (issue_statuses.is_closed=0) AND projects.id IN (1,2,4) AND projects.status=1 AND projects.id IN (SELECT em.project_id FROM enabled_modules em WHERE em.name='issue_tracking')) AND ((((start_date>='2010-04-01' and start_date<='2010-09-30') or (effective_date>='2010-04-01' and effective_date<='2010-09-30') or (start_date<'2010-04-01' and effective_date>'2010-09-30')) and start_date is not null and due_date is null and effective_date is not null)))  ORDER BY start_date, effective_date
Rendering template within layouts/base

Environment (ruby script/about) is:

About your application's environment
Ruby version              1.8.7 (i686-linux)
RubyGems version          1.3.5
Rack version              1.0
Rails version             2.3.5
Active Record version     2.3.5
Active Resource version   2.3.5
Action Mailer version     2.3.5
Active Support version    2.3.5
Application root          /var/lib/redmine.stable
Environment               development
Database adapter          mysql
Database schema version   20100221100219

The build of redmine is Redmine 0.9.3.stable.3625

Thanks in advance.

Max