I keep getting this too on the iphone 3gs, it just started about a week ago.
I jailbroke the phone and thought this may have something to do with it, so I restored it back to its original state, and same problem.
It seems if you try to stream a video on a web url it gives this error, or even sometimes just a plain black screen
Before it would identify the stream - and launch safari I believe.
I havent noticed any updates when backing up my phone, of recent in Intunes.
Looking forward to having this resolved. Please let me know if any one hears.
Also, do any of you experience more glitches after you jailbreak? I lost my network for this first time yesterday which was weird, it was just gone. I had to reboot the phone and it was fine.