I've been experiencing this problem with Adobe Reader 9. Uninstalling Adobe Reader 9 and then installing Adobe Reader X (version 10) seems to resolve this problem, but upgrading from 9 to X does not. Don't upgrade - download Adobe Reader X, do a complete uninstall of 9, then a fresh install of X.
If you have any print jobs that are crashing the print spooler, you'll also need to clear those out of the queue manually. These print jobs are usually stored under:
C:\Windows\System32\Spool\Printers
If they're not there, then check the following Windows Registry setting for the customized path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers\DefaultSpoolDirectory