Error opening datafile: filename, directory, volume syntax incorrect

I receive this error message when I try and run my DTS
package:

"Error opening datafile: The filename, directory name, or
volume label syntax is incorrect."

I set the file name property of the Text File (Source) to
a valid file, but when I run the package and it returns
the above error message, it sets the file name property
to <not displayable>.

Does anyone have any experience with such a problem? If
so please help!!! ThanksIt throws the afforementioned error when I call it from ASP or from the Enterprise Manager.

I'm executing it from asp like:
Set oPkg = Server.CreateObject("DTS.Package")
oPkg.Execute

But the fact that it throws the error from EM on the server is most alarming. I just returned from vacation and I have no idea what could be causing this.

The file names do exist on the local server, but when the package is run it sets the file name property to "<not displayable>"