For future reference, Fred, please only include the relevant code, not the entire script. On Mon, Dec 8, 2008 at 11:46 AM, Fred Silsbee <fredsilsbee@xxxxxxxxx> wrote: [snip!] > > Under windows, the first page has an error <br /><b>Notice</b>: Undefined variable: ExercisePrice in <b>C:\Inetpub\wwwroot\new_black_scholes.php</b> on line <b>198</b><br /> This is just a matter of the INI settings error_reporting and/or error_display being different. It's not an OS thing at all. You can change php.ini on the offending system to this: error_reporting = E_ALL | ~E_NOTICE ; Note that the | is the pipe character. Preferably, though, the variable on line 198 should be defined. It doesn't absolutely *NEED* to be, but good coding standards beg that you do. [snip!] > <input type="text" size="20" maxlength="40" name="ExercisePrice" > value="<?php echo $ExercisePrice; ?>" /> [snip!] There's your problem. $ExercisePrice is called (within the <?php ?> tags), but was never defined before this. -- </Daniel P. Brown> http://www.parasane.net/ daniel.brown@xxxxxxxxxxxx || danbrown@xxxxxxx 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP Windows Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php