Jobs And Steps

Here is an interesting problem I can't figure out. I have a job with 6 steps as follows:

Step 1 - Import text file 1
Step 2 - Import text file 2
Step 3 - Delete all data from address tables 1 and 2
Step 4 - Copy data from imported table 1 to address table 1
Step 5 - Copy data from imported table 2 to address table 2
Step 6 - Delete imported taxt file table 1 and 2

Now when I run each of these steps individually, like running the dts packages and stored procedures my self it all works fine and the data in my tables appears to update. Then, when I set the job to run automatically, it says completed and no errors but my data hasn't updated. The job must be doing what it is meant to as it took about 40 seconds which is normal.

Ever seen this problem before?