Uninitialized string offset: 0

[eluser]stuffradio[/eluser]
I'm getting this error when I'm trying to use the imap pop class.

http://codeigniter.com/wiki/imap_pop_class/

I am using the modified version.

A PHP Error was encountered

Severity: Notice

Message: Uninitialized string offset: 0

Filename: libraries/imap_pop.php

Line Number: 92
A PHP Error was encountered

Severity: Notice

Message: Uninitialized string offset: 0

Filename: libraries/imap_pop.php

Line Number: 93

A PHP Error was encountered

Severity: Notice

Message: Uninitialized string offset: 0

Filename: libraries/imap_pop.php

Line Number: 94
A PHP Error was encountered

Severity: Notice

Message: Uninitialized string offset: 0

Filename: libraries/imap_pop.php

Line Number: 96
A PHP Error was encountered

Severity: Notice

Message: Uninitialized string offset: 0

Filename: libraries/imap_pop.php

Line Number: 97
A PHP Error was encountered

Severity: Notice

Message: Undefined variable: email_array

Filename: libraries/imap_pop.php

Line Number: 330
A PHP Error was encountered

Severity: Notice

Message: Unknown: Can't open mailbox {}: invalid remote specification (errflg=2)

Filename: Unknown

Line Number: 0

Any ideas?