I have installed the following data loader version in my system. The operating system installed on my system is Windows 2007.
When I run the data loader script the fields are getting skipped and data is not getting loaded properly.
It does happen when the speed with which Forms Data Loader send
information does not synchronize with the speed with which the target
application processes the information.
To avoid this please try reducing the speed with which data is send by clicking the slide bar in the loading option window as shown in the picture below.
You can also try inserting Time Delays in between cells so that Data Loader will wait for certain milliseconds before processing another cell.
You can also try alternate method of loading by clicking the "Use
Alternate method" checkbox.
Hope this helps,