I can't get scheduled DTS package to execute

[ddiabetes]

My database resides on my ISP SQL server, in Colorado. My new data can be found as a TXT file on the C: drive of the shipping PC in my Florida office.
I created a DTS package to import the data from the TXT file to a table in my database. The package works fine, until I schedule it to run.
The package uses the UNC address to find the TXT file. As a result, I can go to any PC in my office and execute the package.
But, when I schedule it to run unattended, it fails.

Can anyone give me any advice?

[rmiao]

Seems sql agent service startup account doesn't have permission to access your text file. Either starting sql agent with proper account or put file on sql server's local disk.