I don't know anything about Microsoft Media Center/Windows Media Center..but I've had ATI capture cards in the past...and Pinnacle and currently use Hauppauge cards. The cards I've had or reviewed indicate if they are compatible with XP, Vista, etc.
Any capture card I've had comes with a program for capture...so I'm not sure what role MCE plays in your install of Vista.
I don't know anything about Vista, but...if the card indicates that it supports Vista, then it does.
If you used the USB version of the ATI product...that may have been your problem. There is also a PCI-e actual card, rather than a USB device which connects to the system. There seem to be few USB-connected devices...that don't develop some sort of problem eventually, IMO.
As long as you are capturing from any coax cable (cable, sat, etc.), then you want analog capture capability.
I would suggest that you not use a USB-connected device...and get a real PCI-e capture card, such as http://www.newegg.com/Product/Product.aspx...N82E16815116015
. More info on any card...is always available at the manufacturer's website. You can also Google and check for reviews, user comments, complaints, etc.
Edited by hamluis, 16 October 2009 - 12:27 PM.