[SOLVED] cron.php.1 file string in /home/MYUSERNAME/ directory

Greetings,

I've successfully created a cron job using cPanel on my shared hosted site. Below are the details. (I don't think I can use the img tag)
http://briankross.com/forum_files/drupal-contrab-cron.png

When I look in /home/MYUSERNAME I now see many dozens of 'cron.php.1, cron.php.2, etc.' files that are empty and using 0 bytes.

- Is this normal?
- Do I just leave it alone? It's going to create many hundreds of files... though empty, is quite messy.
- If it's not normal, what should I do?

Thanks so much for your time, I've done some searching on this and haven't found what I described above.

Drupal: 6.15
Access to update.php: Protected
Configuration file: Protected
Cron maintenance tasks: Last run 35 min 48 sec ago
Database updates: Up to date
Drupal core update status: Up to date
File system: Writable (public download method)
GD library: bundled (2.0.34 compatible)
MySQL database: 5.0.85
PHP: 5.2.9
PHP memory limit: 32M
PHP register globals: Disabled
Unicode library: PHP Mbstring Extension
Update notifications: Enabled
Web server: Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635