TV Tunner Problem

[Tanweer]

Asslam Alaikum Friends,
Mera TV Tunner pehle sahi se kaam karta tha, magar ab woh channels wagerah detect karne ke bajaye Black Screen show kar raha hai
Any Idea........?
Drivers wagerah aor is ka software is ki apni CD hi se install kiya hai, is se pehle wali Windows men bhi same problem aa rahi thi,
White Screen with Mosquitoes show nahin ho rahi jesi Normal TVs par aor is par kabhi show hua karti thi channels na hone ke bawujood