Problems with speedtest.net FF 51.0.1

[albertd]

When using 51.0.1, speedtest.net graphics are very jittery, though the test takes place. Reverting to 50.1.0 and it is OK again. Using Win 8.1 and the latest version of Flash (24.0.0.194). I note that I am not alone with this, going by comments on a general forum elsewhere.

Tried reinstalling, opening in safe mode, deselecting H/W acceleration, refreshing, new profile.

Any thoughts?

[DN123ABC]

For the record, this site looked fine for me on version 52.0b2 (32-bit)

[albertd]

As it was jittery graphics, I have also (with great trepidation!) updated my video drivers, but no improvement when I tried 51.0.1 again, so back on 50.1.0.

[therube]

Restart 51 in Safe Mode & see if it still does the same?

[albertd]

Restart 51 in Safe Mode & see if it still does the same?

Already done that as I said in post #1, or do you mean doing it again now that I have updated the drivers?.

[therube]

(No, I just missed where you had said that.)