WMC Freezes At End Of Netflix Episodes

Almost every time a Netflix show I'm watching in Media Center reaches the end (final frames of video), the show freezes in full screen and WMC stops responding. The video remains full screen, frozen on the last frame played, and WMC's menus/buttons do not appear. WMC does not back out of the video to the Netflix browser.I say almost because because a show has properly ended and backed out to the Neflix/WMC browser maybe once in all the episodes/movies I've watched (~10, mostly tv episodes, one movie).Typically the freeze happens before the very end of the video (during credits, sometimes chopping the show short/mid-sentence if they're talking over credits).The only way I can get out of the video and back to WMC is to alt-ctrl-del and end the Media Center process (it shows Running in task manager but eventually it comes up "Not Responding" then restarts).I've rebooted several times with the same result.I can properly back out of a running video to the Neflix browser any time prior to the lock up, but once it's frozen the only way to get out is to end the task in windows task manager.Otherwise WMC is running fine, this is just a super deal breaker since I have to go through so many steps just to watch the next episode of the series.Running Windows 7 Home Premium (64 bit), latest updates installed including those for WMC and Silverlight. It's on a computer I just started using as an HTPC so the WMC Netflix plugin is freshly installed as well. Almost no applications running in background. Dell Inspiron 1764 core i3 2.13GHz, 4GB ram, ATI Mobility Radeon HD 4330. Connected to HD TV at 720p (computer doesn't quite keep up at 1080p).Internet/Netflix connection is tried and true- have been streaming Netflix via Nintendo Wii and web browsers for years- only experiencing playback issues in WMC.