Import of data reported successful but records missing

I have a problem importing a CSV file into CiviCRM on both Linux and Windows. CiviCRM says it was successfully able to import the 6000+ records but when you use "Find contacts" a small subset (3-4) of the contacts are actually there. I see the status_ and the uploaded csv files in the upload directory.

Directory of C:\GBCACM\DEV\drupal_files\www.gbcacm.ed\civicrm\upload

07/15/2007 01:02 PM 2,959,763 aaaa_a7acaa46faf1fe8c4e30e7247b40465c.csv
07/15/2007 01:05 PM 79 status_ec19d814255a40d03336567192060796.txt

The status file says the following...

C:>type status_ec19d814255a40d03336567192060796.txt
[0,"<div class='description'>  No processing status reported yet.<\/div>"]
C:>

I have attached a CSV file with 4 records with the personal information blanked out. CiviCRM says it imported 4 records successfully but only the first record is actually imported.

I have tried to reproduce this on the demo site but it seems to work. I imported the same data twice using Tag: testcase-min1 and the import field mapping of TestingMinimal.

This behavior was found in version 1.7 and 1.8. I was able to reproduce it after another developer could not get it to work either. I am using Windows XP, PHP 5.2 and Apache 2.2. The other developer was using Fedore Core.

I also created another issue regarding the progress bar on Windows which may or may not be related see CRM-2096.