Arcsoft TotalMedia 3 blank screen problem

Hi everyone. i am a nubie here and hope someone can help with an issue I have.

Yesterday I purchased the latest version of TMT3 (v 3.0.1.160) but when I insert a bluray dvd into the pc I cannot see the video/picture (ie just a blank screen on playback). But the sound plays ok. The blurays are both purchased ones (The International) and some recorded from a panasonic blu ray dvd recorder.

The film is playing but the screen is black. If I pause the playback and take a screencap by clicking the camera icon, even though there is a black screen showing it does capture the actual picture. I use AnyDVD also.

I have the latest video driver installed and have checked that there is no update for the software on the Arcsoft site, which there isn't. I have also ensured I have the codecs required. Although if you feel that could be the issue please advise me. However, given the screencap works, even though the actual screen is blank, it would suggest the codec is ok.

My pc is:

HP Media Centre M7775.uk
Intel RCore(TM)2 CPU 6600@6600@2.40GHZ
Radeon X1650SE video card.
Windows Vista

Your help is appreciated

John

Yes, just tried that but no success. Is it possible the one of the codecs I have previously saved to the pc could be causing the problem? But looking at my 'add remove programs' it was a while ago. I have also tried playing the dvd in vlc media player and it states it cant render the file. Thats from the purchased 'The International' blu ray. But also applies to recorded ones. The files are all *.m2ts files. I am thinking I must be missing a codec?

Many thanks

Given the hardware we have in common is the ATI graphics card, could this be the problem? It's so frustrating as I can't find a solution from anyone.