NetFlix Interface laggy on new system / Replacement for onboard GeForce 7050.

Can you describe the lag?  I don't have any.

Below are some general settings to set to help prevent unnecessary delays.

1- Disable “Automatically detect settings” in IE proxy configuration

Many applications, including Netflix, will check IE proxy configuration and leaving the default auto detect setting enable can cause a delay.

2- If you internet provider performs DNS Hijacking by violating the RFC standard for DNS (NXDOMAIN) responses then opt-out or change to a 3rd party DNS server such as Google Public DNS.

Comcast, Time Warner, Cox, Rogers, etc, all use DNS hijacking and enable the "service" by default.  Same thing with OpenDNS, they do the same crap.  You can disable it in OpenDNS as well but then you lose other features.  Opt-out!  I actually do both, 1- opt-out in a small effort to show via numbers that the service is crap, and 2- use Google Public DNS.

Depending on the technology used by a CDN (GeoDNS, Anycast, Black Magic, Voodoo) uses Google Public DNS or any other shared public provider may be a bad idea as well.  Typically a CDN's authoritative DNS hosting will feed recursive (non-autoritative) DNS services (i.e. Google Public DNS, OpenDNS, etc) with different IP address information according to the GeoIP location of the recursive DNS server.   So as a user you'll get an IP address of the Netflix server closest to the DNS server instead of your geographic location.  This could be none issue but other times could lead to a high latency.

Oh, also, the 7050 series is completely awful. They're single channel memory chipsets which means performance is worst by 10-20% then normal; I've had three of them (actually, one was a 7100 that was clocked hgher) and they all could just barely playback the variety of media I have without taxing the CPU. A slight stutter here and there was normal with them using local media.

I would highly suggest getting a new motherboard or dropping in a 5450 to help out. I would not suggest at all using a 7000 series board.

The silverlight interface for the PC is just crappy. It lags on my 6 core gaming box the same as my HTPC with the ATI\AMD 3200 and a 3ghz dual core. Yet the video plays fine.

Yet the interface is snappy on my XBOX 360 and Wii and I know the hardware in those machines is not as powerful as the PCs. 

I've just learned to not get impatient as mash the back button, otherwise when it catches up it starts flipping back all the way to the start screen. 

My guess is it is a silverlight coding or network issue. It seems to recache the account everytime I go back to the main netflix screen, reload my que, box covers, title suggestions. It should be able to cache that in the background.

I recall seeing a post on TGB a while back about uninstalling .NET and Silverlight and between controlling the order they get reinstalled/updated and choosing a specific version of Silverlight that the issue can be fixed.  I didn't try it at the time and totally forgot to bookmark it.  But might be worth searching for that post and trying it out.

I am not sure which of the variables I changed but Netflix is lag free now.

I made Mikinho's changes to the NIC to point to Google DNS servers.

I went back to using an Intel NIC instead of the onboard realtek. That fixed my bluray lag also.

And Netflix was updated just like the XBOX interface was last week. I am not sure if they did something behind the scenes but covers show up within a second of starting the app and also when I stop a stream I don't get lag when it goes to the remove from que, resume,restart screen.