OMA DRM Source Filter Error

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what can I do to fix the following error?


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OMA DRM Source Filter Error
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Failed to acquire rights for the stream. This can be due to a network
problem, please try again later! (Code: 0x0003)
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OK
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I get the above when I open web TV page like the English channel 9 of
http://tv.cctv.com/live_t/index.shtml
Actually any other channel as well

the requite active control has been installed and was useable a couple of
days earlier. the webpage was playing nicely before yesterday. NO hardware
no software change since then.
the PC is xp home with latest os critical patches installed


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