Import Problem

[emc]

When trying to import a CSV of 30,000 contacts i get this error

Webpage error details

Message: 'responseText' is null or not an object
Line: 817
Char: 21
Code: 0
URI: http://68.168.105.146/index.php



System Specs:

Windows Server 2008 R2

SugarCRM 6

I have already imported a list of 43,000 contacts before this one without a problem...... Please Advise

[emc]

come guys i really need some help here

[emc]

***update*** thinking maybe it was the CSV i was trying to import i tried several smaller ones like 15 to 100 contacts all gave the same error don't know of this helps with the troubleshooting