Ati Mobility Radeon HD 4650

hi guys first sorry for my bad english

i have a Ati Mobility Radeon HD 4650 Display Card and i install lastet driver of my card its AMD Catalyst 13.1

but when i try ocLhasshcat i got:
 ATTENTION! Unsupported or incorrect installed GPU driver detected!



You are STRONGLY encouraged to use the official supported GPU driver for good re
asons



See oclHashcat's homepage for official supported GPU drivers


im on windows 8.1