.:A LITTLE PROBLEM WITH NBA 2K9 ITALIAN DEMO:.

hey guys....I've a little problem with NBA 2k9 demo italian version:
the game feel very good but when I go to the main menu or in the controls menu the game display the content very slowly....
what can i do to improve the "speed"....

this is my pc:

SO: Windows Vista Home Premium 32 bit (you know..oh no...hi hate Vista but I've not time to istall an other SO)
CPU: Intel Core 2 Duo E6550 2.33 Ghz X 2
RAM: 2 gb DDR2
HDD: 500 gb SATA Databurst
GPU: ATI Radeon 2600 XT HD -- 256 Mb
SCREEN: Samsung SyncMaster 932MW
PC NAME: Dell Vostro 400



thanks in advance...

Try to grab the latest drivers for your graphic card.