This plugin is working fine, however can I please request that you increase the options for the timer delay, 5 seconds isn't enough if you have text on the slides.
At a minimum it should be 8 seconds.
I would suggest changing line 161 of options_page.php from:
<?php for($i=100; $i<=5000; $i+= 100): ?>
<?php for($i=100; $i<=10000; $i+= 100): ?>