Streaming to Toshiba 46G300U HDTV stuttering and choppy

[haraldd]

Hi
When streaming video from my Win7 PC (3.70 gigahertz AMD Phenom II X4 965 and 8GB RAM) to my Toshiba HDTV directly via my wired Ethernet (RG6) home network the audio and video sometimes stutters; often it is at the beginning of a video and usually pressing the pause button and restarting it fixes the issue temporarily; my network shows a utilization of up 20% (20 Mbps) with a 1080p Divx 5 video and an overall bit rate of 11 Mbps; the issue does not occur with the inbuilt media player from Toshiba which supports only Mpeg-2 video format, however Mpeg-2 videos do stutter in Mezzmo. I have also tried all the generic profiles; in none of the profiles the forward and backward buttons work; some formats (Flv or Mp4) work in some videos but not in others. I have limited the maximum video size in the performance tab of the Toshiba media device to 1080p.
Why do I also have the WMP showing up as a media device in Mezzmo? Is shows it has IP of my NIC and the MAC address of the Toshiba DLNA client. The TV is DLNA and Win7 certified but does not support the "play-to" streaming feature of Windows 7.
I had to reinstall the program several times and only after I had deleted all libraries during the uninstall could I fix the issue of loading timeouts when trying to access my media.
Please help
Harald