Memory error

Hi guys Using Apache/2.0.52 with PHP 4.3.10 on Windows XP. When I try to load a page, I get the following error message: --------------------------- php.exe - Application Error --------------------------- The instruction at "0x10007889" referenced memory at "0x30681876". The memory could not be "read". Click on OK to terminate the program Click on CANCEL to debug the program --------------------------- OK Cancel --------------------------- Followed by: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, admin@kpho.local and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. ------------------------------------------------------------------------ Apache/2.0.52 (Win32) Server at localhost Port 80 If I look in the apache logs, I get the following error: [Mon Jan 17 10:18:15 2005] [error] [client 127.0.0.1] Premature end of script headers: php.exe, referer: http://localhost/spar/admin/rpt_electrans.php Any ideas what could be the cause of this? Thanks Louis