Problems with new release Connected 1.5 - Release 75 - movies will not play properly

Hi,
When I upgraded to release 75, every film that I tried to stream, played for a second then stopped for a second, played for a second and stopped and so on and so on.

My set up is as follows:
Dlink 330 hd media streamer
Dlink dns 323 - media storage
acer 1.8 duel core
4gb ram.
Full wired connection all around

All my movies are held on my media storage device which is plugged into my router. Prior to this upgrade, everything was fine and streaming direct from my network stroage was fantastic. It is only since I went to release 75 that the problems have occured.

I have since downgraded to a previous release - (Downloaded from your website - release 54 I think)and everything is fine again. So it is definatley release 75.

Since the problem started happening I also upgraded the formware on the media streamer as I wondered if this was an issue, but even doing this, the same problem was present. So I am as fully up to date as I can be.

This does seem to be relating to the new release.

Please advise on any solution here as I dont line the thought of never being able to keep my versions up to date.

Thanks