writing to a text file

[Nichole Bialczyk]

i'm trying to write a log file and i can't seem to open it to write to. the file does 
exist. here is the code for opening the file:

if(! open(LOG, ">xxx.txt)) {
   print "Content-type: text/html\n\n";
   print "Can't open xxx.txt\n";
   exit;
}
print LOG "At $date, $ENV{'REMOTE_HOST'} etc., etc.

any comments/suggestions would be most helpful.
thanks, nichole