Did anything else happen a couple of days ago?  Such as adding or removing
any hardware or software?  If so, that could be related.

If not, I would first try deleting the contents of the spool folder:

Start Windows Explorer.
On the View menu, click Folder Options.
Click the View tab, click Show all files, click to clear the Hide file
extensions for known file types check box, and then click OK.
Browse to the following location:
C:\Windows\Spool\Printers
On the Edit menu, click Select All.
On the File menu, click Delete.
When the Confirm File Delete message appears, click Yes.
Quit Windows Explorer.
Restart the computer.

If that doesn't help, go through this article.

HOW TO: Troubleshoot Printing Problems in Windows 95, Windows 98, and
Windows Millennium Edition
http://support.microsoft.com/?kbid=128345

PattyL