|Your mboard has onboard video.|
Are you using that,
Do you have a video card card installed in the PCI-E X16 slot and you're using that?
Your mboard has:
One PCI Express x16
One PCI Express x1
The WinTV-HVR-1250 is apparently a PCI-E X1 card.
It's quite possible that the PCI Express X1 slot uses the same IRQ as the onboard video or the PCI-E X16 slot. There is no info about that in the support info for the mboard.
(That info usually IS in the mboard manual for a retail mboard model used on a generic desktop system).
In that case, the WinTV-HVR-1250 may not work properly when it's installed in the PCI_E X1 slot, but it should work fine in the PCI-E X16 slot if you're not using that.
OR - it may not work properly in either slot !
On the other hand, a PCI TV card should work fine
The PCI slot of the two closest to the center of the mboard usually DOES use the same IRQ as the onboard video or the PCI-E X16 slot, so usually a PCI card other than a video card should be installed in the other PCI slot on this mboard.
Assuming you don't have an IRQ sharing problem....
The most common reason a device does not work properly is the software was NOT installed for it properly !
READ the installation directions and follow them !
DO NOT install drivers for the card yourself BEFORE you have installed the software for the card when New Hardware pops up !
If you DID install drivers that way, go to Control Panel - display as Small Icons or Large Icons (not Categories) - Programs and Features and Un-install the software you installed, reboot, DO NOT install drivers while booting or at any time when New Harware pops up.
Continue on to the desktop screen, and install the software for the device using the proper installation from a CD or the proper installation file that you downloaded from the web.
WinTV-HVR-1250 Product Overwview
From the Hauppauge web site in the support for the model:
Can I use the WinTV-HVR-1250 with Media Center?
Yes, the WinTV-HVR-1250 can be used in Windows XP MCE 2005, Vista Media Center or WIndows 7 Media Center.. Simply download and install the latest MCE Kit from the Hauppauge website, which will install the driver and necessary "Hauppauge MCE Soft Encoder". Under Windows 7 only the driver is required, the Soft Encoder is included with the OS.
Here is the link: http://hauppauge.lightpath.net/soft...
Please note: you will only be able to configure WinTV-HVR-1250 as either an Digital tuner or an Analog tuner. You will not be able to switch between Digital and Analog channels.
NOTE: You must set up an analog TV tuner in Media Center first before you can proceed to set up a digital tuner.