I think its a toss up between WP Super Cache and
Shortcode Exec PHP
I’m showing a file list on the page with PHP
just someone knows the issue, before i start going through hours of testing ??
is suppose here is a list of plugins
Akismet
Flexi Pages Widget
Fluency Admin
GC-comments
Google Analytics for WordPress
Google Doc Embedder
Google Talk Chatback Widget
Google XML Sitemaps
HeadSpace2
NextGEN Gallery
Online Backup for WordPress
Quick Adsense
Shortcode Exec PHP
SI CAPTCHA Anti-Spam
Sociable
Social Profiles Widget
Syntax Highlighter ComPress
WordPress Related Posts
WP Greet Box
WP Super Cache