epg doesn't update every x minutes (1 Viewer)

[Spooky]

TV-Server Version: 1.0.0.0 RC3 (usually latest SVN)
MediaPortal Version: 1.0.0.0 RC3 (usually latest SVN)
MediaPortal Skin: BlueTwo wide
Windows Version: Win XP SP2
CPU Type: AMD Athlon X2 4850e
HDD: Seagate DB35 200GB
Memory: Kingston ValueRAM DIMM 2GB PC2-6400U CL5
Motherboard: Gigabyte GA-MA78GPM-DS2H
Video Card: Radeon HD 3200 (780G)
Video Card Driver: Catalyst 8.10
1. TV Card: digital everywhere FloppyDTV S2
1. TV Card Type: DVB-S2
1. TV Card Driver: 4.5.N
MPEG2 Video Codec: Cyberlink Video/SP Decoder (PDVD8)
MPEG2 Audio Codec: Cyberlink Audio Decoder (PDVD8)
h.264 Video Codec: Cyberlink H.264/AVC Decoder (PDVD8)
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case: Antec New Solution NSK1480
Cooling:
Power Supply:
Remote:
TV: Panasonic PT-AX100E
TV - HTPC Connection: VGA

My TV Server is configured to update the EPG data via DVB-S every 240 Minutes. However, according to the logs, nothing at all happened with the TV Server between 01:53 and 12:07. Usually this wouldn't bother me, however ORF 1 HD only provides EPG data for the current day. Therefore the EPG is empty for that channel right now, since it hasn't updated since 01:53 and hasn't updated again yet.

What could cause this behavior of the TV Server?

 

[Spooky]

Nothing?

Isn't it odd, that the logs don't show any activity of the TV Server at all in this time?