Stuttering live HDTV on all channels except one, all 100% receptio

I have a sony vaio desktop with 3.0 Pent-D and vbox external hdtv tuner.
X300 graphics card, not sure of tuner card. 1gb ram.

I have a roof mounted HDTV antenna and I get all channels on my HDTV. I
connected the antenna to my vbox and ran through the MCE Digital signal
setup. All channels show 6bars/100% signal strength, however, when watching,
all channels hiccup/freeze except my CBS station which is perfect.

I tried a new video card (Radeon X800xl) and there was no difference.

Any ideas?

Thanks
Ray Nist

 

What DVD Decoder are you using?
Will a recorded program also stutter? If not then you may have a shared IRQ
problem
It is interesting that CBS is ok since it isa 1080i channel and ABC whcih is
a 720p channel is not.
What resolution are you outputing over what interface to your display(s)?

 

Ray I had the same problem with the USB hdtv vbox, I fix the problem with a
powered USB hub $9.00 us.

 

Hmmm, I am not sure what DVD decoder I am using, how can I tell??

I am just viewing this on my monitor, 1024x724.

A recorded program will also stutter.

****

Richard, did you have some channels that worked and some that didn't?

Thanks
Ray

 

I have read elsewhere a powered USB hub will likely fix this issue.

 

Use the Decoder checkup utility to find out about your decoder, here is the
link:

http://www.microsoft.com/downloads/...ac-0ab6-4990-943d-627e6ade9fcb&displaylang=en

 

Thanks for the replies, I will check the decoder and try a powered hub.

--Ray

 

The powered hub worked!!!! I get all channels now perfectly.

Weird that it didn't happen with CBS??

 

Ray good news Iam glad it worked