Swap drive reporting as being full

I have setup a 30GB swap drive which only has 107 MB free which is fine because it is only used for the swap file.  However, i keep receiving emails from SBSMonAcct@company..co.uk
saying that it is full.  I have followed MS instructions as per http://support.microsoft.com/kb/188074 and i still receive emails. It also shows up when i run best practice analayer.  Any ideas on how can stop the emails appear?


The email which i receive:

An alert was detected on your network. Further investigation into the issue is recommended.

Computer: servername
Date/Time generated: 12/11/2010 10:08:37
Title: Percent Free Disk Space
Source: Performance Threshold
Description:
The free disk space on this computer has dropped below its notification for low disk space threshold.

Volume Name: S:
Free Space: 113221632
Volume Size: 31457275904


Troubleshooting suggestions:

1) If the issue is being reported on the server running Windows SBS, consider freeing up the disk space by reconfiguring its disk using the storage tasks available  under the "Backup and Storage" tab in the Windows SBS Console.
2) If the issue is being reported on a client computer, consider freeing up the disk space by using  the Disk Cleanup and removing any unneccesary files on the computer.