[sharepoint-2010] exceeds the list view threshold 5000 items in Sharepoint 2010

I'm upgrade my sp 2007 to sp 2010 and I have a form library has more then 5000 items. Default view of form library filter items and show only 10-20 item to users.

After upgrade sp2010 All users get below error when going to form library expect site collection admins.

I think this is a permission issue but i did not find any source to solve this issue, have any idea ?

This view cannot be displayed because it exceeds the list view threshold (5000 items) enforced by the administrator.

To view items, try selecting another view or creating a new view. If you do not have sufficient permissions to create views for this list, ask your administrator to modify the view so that it conforms to the list view threshold.

I had the same problem.please do the following it may help you: By Default List View Threshold set at only 5,000 items this is because of Sharepoint server performance.

To Change the LVT:

1. Click SharePoint Central Administration,
2. Go to Application Management
3. Manage Web Applications
4. Select your application
5. Click General Settings at the ribbon
6. Select Resource Throttling
7. List View Threshold limit --> change the value to your need.
8. Also change the List View Threshold for Auditors and Administrators.if you are a administrator.

Click OK to save it.

You can increase the List View Threshold beyond the 5,000 default, but it is highly recommended that you don't, as it has performance implications. The recommended fix is to add an index to the field or fields used in the query (usually the ID field for a list or the Title field for a library).

When there is an index, that is used to retrieve the item(s); when there is no index the whole list is opened for a scan (and therefore hits the threshold). You create the index on the List (or Library) settings page.

This article is a good overview: http://office.microsoft.com/en-us/sharepoint-foundation-help/manage-lists-and-libraries-with-many-items-HA010377496.aspx

SharePoint lists V: Techniques for managing large lists :

Tutorial By Microsoft

Level: Advanced

Length: 40 - 50 minutes

When a SharePoint list gets large, you might see warnings such as, “This list exceeds the list view threshold,” or “Displaying the newest results below.” Find out why these warnings occur, and learn ways to configure your large list so that it still provides useful information.

After completing this course you will be able to:

• Learn what the List View Threshold is, and understand its benefits.
• Create an index so that you can see more information in a view.
• Create folders to better organize your large list.
• Use Datasheet view for fast filtering and sorting of a large list.
• Learn what the Daily Time Window for Large Queries is.
• Use Key Filters for fast filtering within Standard view.
• Sync a large list to SharePoint Workspace.
• Export a large list to Excel. Link a large list in Access.