Any1 can help me?

[jot]

Hi. A few days ago i was re-installing my win7. I have 'microsoft wireless 1000' to play - http://www.conrad.de/medias/global/ce/9000_9999/9000/9090/9099/909934_BB_00_FB.EPS_1000.jpg  , before re-installing win7 this one worked, but when i started my PC after re-installing this one doesn't work. Anyone know, what's going on?

P.S.
batteries are charged, just i don't know wtf :<<

TY in advance.