Research In Motion finally <A HREF="http://news.zdnet.com/2100-1035_22-6177829.html?tag=nl.e589">offered some details</A> late Thursday about what caused a severe outage of its BlackBerry email service from Tuesday evening until Wednesday morning.
The company said in a statement that it had ruled out security and capacity issues as a cause of the outage that left millions of so-called "CrackBerry" addicts without access to their email for several hours. The company also said the incident was not caused by any hardware failure or core software issue.
Ruling out those causes, the company has "determined that the incident was triggered by the introduction of a new, noncritical system routine that was designed to provide better optimization of the system's cache."