i dont know whats happened i updated my avast to professional and now i cant see part of webpages like when i click system restore its all grey?and i think it has something to do with script blocking maybe so i cant restore my pc back to a former day as i cant see anything on page of system restore?

YESSSSSS...........problem solved something hit my system restore point out and for anyone experiencing same problem .....turn off systen restore ...reboot and turn system restore on again ...if u need help with that..........see d-a-l

yeah that happened to me it is very simple to fix just turn the system retore .... the reboot and turn system restore back on