MySQL-Link resource error

[straydoginc 0]

This is the error I seem to be getting. I did run through the above and can't seem to figure this one out. This is in attempt to make and validate a login that doesn't require more than the page itself to validate.

[code]Warning: mysql_close(): supplied argument is not a valid MySQL-Link resource [/code]

[kylew 0]

Could you include some code? There are a few reasons why that error would appear, and seeing the code may make it easier to diagnose.