sco 5.0.5 readdir always fails

$hDir = opendir("."); echo"opendir $hDir"; while($Fil = readdir($hDir)) { echo"readdir $Fil"; if($Fil==".") continue; if($Fil=="..") continue; } echo"closedir $hDir"; closedir($hDir); ?> prints opendir Rescorce Id #3 or some such stuff prints closedir Resource Id #3 since the script opens the dir its in, it has passed permission checks and should be at least able to read ., .., and itself -- My opinions are my own and not that of my employer even if I am self employed