Problem with UNITY WEB PLAYER (facebook, Castleville Legends)

Windows 7
Intel Pentium 4 2,8 Ghz
3 GB RAM
32- bit System
NVidia Geforce FX 5200

so that is my hardware and i dont know what i can do to fix my unity web player. Its doesnt functionally on facebook with castleville legends. when i click on this game its loaded second time than i become a report form unity. i have updatet all drivers but its doesnt gone. can some one help me? I like this game but its very sad that not gone.

thanks

p.s. i´m from germany sry for the bad english

I would guess that unity dropped the support for that old Graphics cards.

Yes but it is supportet 0.9 directx ? Thats it what i understand. My drivers are all up to date.

Can you post/link the webplayer logfile from such an unsuccessful run? See Unity - Manual: Log files

What does it do when you try an other Unity game?