Never mind, the print spooler on the server was causing all of these issues. Resetting it fixed the problem.
I have been setting up several Win 7 Pro (32 bit) computers on an SBS 2003 domain. It has been working for most of the computers, but suddenly I am having a problem. Joining the domain seems to be fine, but the “\\server\client\setup.exe /s server” in the login script hangs. Killing the login script leaves the executable running. Another symptom is that none of the icons for apps to be installed appear on the desktop (not a problem per se, since I can still install the apps through the clientapps share). However, the biggest problem I am having right now is that I can’t install any network printers. I can see them on the server, but nothing happens when I click on them. If I try going through the Add Printer wizard, I can select a printer but nothing happens after that.