Vista - Dropping network connection to printer

Hello.
I'm running a Vista business prem desktop, and a vista ultimate
laptop.
I'm on a home wireless network.
Each time I reboot my laptop I have to reconnect to the printer on my
desktop. (via the add printer).
After the reboot of my laptop when I want to print something I have to
re-add the printer. The printer is listed as one of my printers, but I
have to re-add it to use it.
My drivers are up to date for the printer on the desktop and laptop
When I reboot my laptop I have no problems getting on my home network
and out to the internet.
Help??!?!
Thanks