I have used safari,firefox and a.o.l . Bar still jumps . I am not that great with computer linGO.
Try Maxthon3 browser
Apart from that, your PC needs
reset safari, but mouse wheel it's not work , but it's ok browser
off extension all, not full screen
mycom
CPU3.0QC
OS X Lion 10.7.5
Ram 16G
Monitor 14" lol
Safari 6.0.4
Open Safari and close window all
Debug Mode>New Single -Process Window
ITS ok, scoll mouse work
meter not jump
no prob anything