Fresh install with sample data.
When trying to add an entry to a room, the following appears at the end of the Start Date box.
Internal error - resolution is NULL or <= 0
Here's the following information from the Help Menu.
Meeting Room Booking System: MRBS 1.4.5
Database: MySQL 5.1.49-1ubuntu8.1
System: Linux scruffy 2.6.35-25-generic-pae #44-Ubuntu SMP Fri Jan 21 19:01:46 UTC 2011 i686
Server time: Tue 08 Feb 2011 09:49:45 EST
I thought it might be because we are using PHP 5.3, but any other ideas would be great.