Fixed a bug in Validation where individual error messages for checkboxes wasn't supported.
diff --git a/system/libraries/Validation.php b/system/libraries/Validation.php
index 575c526..468f2ad 100644
--- a/system/libraries/Validation.php
+++ b/system/libraries/Validation.php
@@ -228,8 +228,14 @@
 						$line = $this->_error_messages['isset'];

 					}

 					

-					$field = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field];

-					$this->_error_array[] = sprintf($line, $field);	

+					// Build the error message

+					$mfield = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field];

+					$message = sprintf($line, $mfield);

+

+					// Set the error variable.  Example: $this->username_error

+					$error = $field.'_error';

+					$this->$error = $this->_error_prefix.$message.$this->_error_suffix;

+					$this->_error_array[] = $message;

 				}

 						

 				continue;