MP ignores serial recording when epg is empty

[tklon]

Windows Version: Windows XP Professional SP2
CPU Type: AMD Athlon XP-M 2400+ (AXMD2400FJQ4C)
Memory: 2 x 256MB takeMS CL2.5 PC400
Motherboard: Soltek SL-75MIV2-L
Motherboard Chipset: VIA KM400
Motherboard Bios: AMI AU1.4L
Video Card: Sapphire Radeon 9600, 128 MB
Video Card Driver: Catalyst 6.4
Sound Card: VIA onboard
Sound Card AC3: no AC3
Sound Card Driver: latest
1. TV Card: Hauppauge WinTV PVR 250
1. TV Card Type: analog
1. TV Card Driver: hcw2_3b_23102pp2
2. TV Card: n/a
2. TV Card Type: n/a
2. TV Card Driver: n/a
Video Codec: InterVideo Video Decoder
Audio Codec: InterVideo Audio Decoder
Satelite/CableTV Provider: Kabel Deutschland
HTPC Case: SilverStone LaScala SST-LC04 black
Power Supply: SilverStone TFX 240W PFC
Remote: 34-button Hauppauge
TV: Sony KV-29X5D
TV - HTPC Connection: Composite

I've set the following timer with the mp epg:
channel: KABEL1
show: Star Trek TNG
time: 16:05 - 17:00
interval: monday - friday

Due to problems grabbing one channel the epg was not populated and the recording of the show failed. I noticed this behavior already twice.

There was also one thursday where they didn't show an episode of Star Trek TNG. MP recorded from 16:05 - 17:00 and named the show with the actually name out of the epg.

Sorry, but the error is already some days ago. So I can't post logs. But perhaps someone can confirm this.