I am having very unique issue and I could not find anything similar to this issue. I used quick start files to create a new Joomla 3.0 website. Everything was loading fine for first few days. The system decided to spit out blank pages all of sudden with no change.
This happened three time to me with game news and game magazine templates. The Beez3 template is loading fine for same installation. I do not see any entries in the log files even after turning on logging for everything.
The URL is plashy.com and currently Beez3 template is active. The phpinfo is spit out by following URL