World of Tanks update 7.2 problem...

Hi.

I have played WoT for about a year with no problems, but in the last few days they have issued update 7.2, and apparently my graphics card is no longer up to the job (and the WoT game makers are of no help whatsoever).

I have a ATI Radeon X1200 graphics card in my Acer E series PC running a 32bit windows 7 OS.

My question is, can I download any software to enable my GFX card to run better, or do I need to buy a new GFX card ?

And if I do need to buy a new card, which one would be best ?

Thanks guys, I have used this site for years but only just registered now so I can post this.

Thanks again.