I rebuilt the db and still have the same problem, I don't know ho it can work for one flight then simply break, here is a portion of the log file after I send the request for the acars
5/29/2011 2:49:32 PM: 890 - FS Screen : Sending ACARS ATIS request for CYYC ......
5/29/2011 2:49:34 PM: 410 - No ATIS Weather data detected for CYYC --> now retrying...
5/29/2011 2:49:36 PM: 410 - ATIS Weather retrieved for CYYC using Lat/Lon co-ordinates 51.11389,-114.0203
5/29/2011 2:49:36 PM: 640 - No active AI at CYYC - Checking wind direction for runway-in-use!
5/29/2011 2:49:36 PM: 640 - Active Runway determined by PF (Wind) selection
5/29/2011 2:49:36 PM: 640 - Extracting Weather Data from CYYC
5/29/2011 2:49:37 PM: 160 - Visibility from weather station: 39
5/29/2011 2:49:37 PM: 160 - Wind DIR from weather station : 40
5/29/2011 2:49:37 PM: 160 - Cloud alt from weather station : 6001
5/29/2011 2:49:37 PM: 160 - Long Rwy = 5000
5/29/2011 2:49:37 PM: 160 - Selecting runway (VFR/IFR=1)
5/29/2011 2:49:37 PM: 160 - Selecting runway (VFR/IFR=0)
5/29/2011 2:49:37 PM: 160 -
FS Screen : No suitable runways! Contact OnCourse Software for assistance at pfe@oncourse-software.co.uk
5/29/2011 2:49:38 PM: 160 - Checking compliance - Alt: 36985 sWPAlt: 37000 FlightType: 1 ATC_Timer: 0 AltTimer: 0 FSTime: 53378 AptSighted: 0 Handoff: 0
5/29/2011 2:49:38 PM: 160 - Into GH 3