SQL Server 2005 identity incrementing by itself

I have a table with an identity column that have incremented by 1 for all its records then suddenly last week it started incrementing in a weird way.

For example:

Identity - Date

31891 2010-02-27 09:47:41    
39258 2010-02-27 13:13:03    
41994 2010-02-27 13:43:56   
45119 2010-02-27 14:44:43    
45120 2010-02-27 14:51:33
45121 2010-02-27 15:01:12    
63943 2010-02-27 19:38:24    
63944 2010-02-27 20:14:11   
73344 2010-02-27 22:06:35   
78298 2010-02-27 22:54:43    
124007 2010-02-28 07:02:51    
130482 2010-02-28 07:35:34    
130483 2010-02-28 08:05:02    
144470 2010-02-28 10:11:57    
164253 2010-02-28 11:30:00   
254921 2010-02-28 16:59:51    
254922 2010-02-28 17:06:28

If you look at the time you can see that the longer time it is between inserts the highter 开发者_开发技巧the increment is. I am totally lost to why this is happening. I do not perform any delete queries on the table so it can't be deleted rows.

An identity sequence is incremented any time an insert is attempted -- this includes a failed or rolled back INSERT. Do you have any processes generating insert errors or rolling back?

Each failed insert results in the identity value being incremented. Is it possible something is trying to insert new rows and failing?