List page to detail page disconnect

Great product!! Easy to use. I'm very impressed.

But one stumbling block for me.

Have CMS Builder working properly on several pages but...
On a particular list page the link between the List page and the Detail page is off by one number.

example: link for item one is:
http://xxxx.com/singles_atocDetail.php?item-1

link for item two is:
http://xxx.com/singles_atocDetail.php?item-3
When in fact in the database table the item is #2. So this link takes you to item 3 instead of item 2.

Item 3's link takes you to item 4, item 4's link takes you to item 5 etc.

Item 1's link is the only link working properly.

If this were a coding issue I'd assume the first link would not work properly.

Could this be a database table error? I've deleted the List and Detail sections several times but the problem persists.

Thanks.