BETA version -- 4.3.9.182

[drhouse]

Have you tried in a separate program other than the browser, to verify it's not a separate pc issue? Try Cent safe mode and see if it works then..?

Using the latest 64 bit portable beta, autoscroll works fine here. "use autoscrolling" should be ON (mine is)

I use the portable, so I can revert to an older version instantly. If you can roll back, is it ok then?

Ok, I tried the latest portable (v4.3.9.182) and auto-scroll seems to work. Hmm, wonder why auto-scrolling didn't work with the installer version. So, that's good news and registering the portable version as Windows default browser also seemed to work.