Device Selector windows pops up when i start Mac and when I shut it down

[zillah]

Hi Expert

Client of mine has got MacBook with Mac OS X 10.6.6

I do not know what he has done to his MacBook now whenever I start the operation system or shutdown the "Device Selector" applet or window pops us with the following details

[U]Connection Type[/U] 

Choose the setup type that best suits your need

USB

Network

i guess he connected his brother printer and he didn't complete the installation

if I answer the question(s) and complete what sounds like an installation wizard that doesn't make it stop asking me the same question

I have looked at the login items list in the Users system preference panel, but the printer installer was not there.

How can I disable this annoying message ?

Thanks