MP crashing / rebooting upon FF or RW of video (1 Viewer)

[markrb]

TV-Server Version: None
MediaPortal Version: 1.0.2 and 1.1 Beta 1
MediaPortal Skin: Monochrome
Windows Version: Vista 32 and Win 7 RTM
CPU Type: C2D 6400
HDD: 320 and 500
Memory: 2gb
Motherboard: Asus
Video Card: ATI 4850
Video Card Driver: Catalyst 9.8
Sound Card: Asus HDAV Slim
Sound Card AC3: Same
Sound Card Driver:
1. TV Card:
1. TV Card Type:
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: ffdshow
MPEG2 Audio Codec: ffdshow
h.264 Video Codec: ffdshow
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote: Harmony MCE mode
TV:
TV - HTPC Connection: HDMI


This has been happening for a couple of MP versions now (since 1.0). If I try and FF or REW videos (avi, mkv) with my remote my computer just hard reboots without warning.
It does not happen with TMT3, using MP for DVD's or doing any other task.
The system is very stable outside of FF or REW.
I did a fresh install of Vista SP2 and MP with no change. I then tried Win 7 and it happens on that platform too.
Before 1.0 I never had this issue. At first I just thought it was a bad install or a corrupt OS, but that proved false.
Hardware issues would have shown up in other then this very specific instance.
I can't see it being the splitter as I use Windows built in for avi and Haali for mkv. Maybe ffdshow? Never had an issue before with it.

I searched the forums and can't find a single instance like this. Has anyone heard of this happening?
Any thoughts on what could be causing it?

 

[markrb]

As an update this still happens. I am now running Win 7 final with MP 1.1 Beta and the latest SVN.
It happens both on networked and local files.
If I use the jump step it works and doesn't crash. It's only the standard REW or FF
I am using SAF, latest version, now.
The log does not show anything happening as it's a sudden full reboot.