I've had this problem previously and had fixed it, but i recently upgraded to x64 bit win7 and now it's reoccuring.

When i try to ping on the floor or any of the runes i cannot ping. But if i click on the mini map i ping just fine. But this is a problem cause i can't ping directly on the ground where a ward can be or the rune itself.

If anyone knows a console command to fix this plz post it. Or if anyone know's of a quick fix let me know. I've emptied cache a lot of times already and don't have sticky keys on.