各位前輩:
小弟所使用的系統是
win xp Home+apache2.052+php5.0+mysql5.0.13+Plog1.0.2beta
已完全裝好,也可登入,但登入後的第一個畫面就有這些錯誤訊息

Notice: Undefined variable: postTexts in C:\Program Files\Apache Group\Apache2\htdocs\plog\class\dao\articles.class.php on line 505

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\htdocs\plog\class\dao\articles.class.php:505) in C:\Program Files\Apache Group\Apache2\htdocs\plog\class\view\view.class.php on line 316

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\htdocs\plog\class\dao\articles.class.php:505) in C:\Program Files\Apache Group\Apache2\htdocs\plog\class\view\view.class.php on line 177

到底要如何解決?