The error log has the following: (it seems others have had this issue in the past and I'm still trying different fixes)
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 2
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 3
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 4
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 5
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 6
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 7
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 22
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 9
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 10
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 11
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 12
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 17
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 26
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 8
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 13
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 14
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 15
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 20
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 21
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 16
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 35
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 36
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 37
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 38
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 19
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 23
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 18
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 24
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 25
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 29
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 30
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 31
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 32
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 33
[2012-04-04 14:59:30] (ERROR @ /index.php) Resource URI already exists for resource id = 1; skipping duplicate resource URI for resource id = 39