Why Won't My Camera Connect To My Computer?

Okay So Today I Wanted To Uplode Some Pictures && It Would Not Let Me It Only Says One Moment But Its Been Like 20 Minutes Now Thats Too Long && I Alway Uplode Pictures Except Today It Wont Let Me? I Have The "Olympus Stylus 7010" Iv Been Having It Like For Three Years Now && This Has Never Happen To Me? What Should I Do???? Help???