Dvd wont play (TDK 880N)

[qanda]This thread is about the TDK 880N. Click here to see full specs[/qanda]Hi everyone,
Im now in my early 60s you could say retired but dont feel like I could! Im a construction site manager but work is hard to find in this resession so Ill just keep looking, you never know whats round the next corner! I find now that the old brain does not want to function anymore, not like it used to. enough of that, I had a problem with my comp, and decided to format, after replacing everything, and all the other bits and bobs I now find that my dvd player will not play any of my dvds, It plays cds (music) but will not play a dvd.
When I insert a dvd and play with W.M.P. VERSION 11 It comes back with a report that it( cannot play dvd please try reducing the windows display settings lower screen resolution and colour quality)
I have never had a problem untill now!!
My comp is asus motherboard, my o.s. is windows xp home, system type x86
family 6 stepping 11 geniuneintell 2304MHz, display ATI Radeon HD 4670.
Please can anyone help me or point me in the right direction.
Regards to all

Did the gfx card/computer come with PowerDVD or WinDVD? If yes,install them.
Otherwise try with VLC media player or Nero.

Thanks will try and come back to u
Regards Dave

Thanks Chef,
Your a star reinstalled win dvd and alls well (remember what I said about the brain part) well I forgot I even had that disc!!
Thanks again
Regards Dave

Glad it works.