SOLVED Lost ps/2 Mouse pointer control after viewing Youtube Videos.

[newtusmaximus]

Cursor problem has occurred again Desktop ll2.6  Got round the problem with 2.0 by installing pepperflash and configuring Firefox.  Chrome always used to work without problems - my fallback position.

Have tried the appraoch listed above  re mouse control refusal; Rebooted and still no joy  - Used to be now and again , but now all the time -  Desktop pc is 8 or so years old -

Triedcat /proc/cpuinfo | grep flags
Have sse2 listed so in theory video card is good enough for the job??  BBC Iplayer and news  videos etc - no problem.
intel 82q963/q965

reloaded pepperflash  ps2 mouse =  left and right mouse clicks work as does  scroll wheel.  PS2 into ps2 socket not usb converter.
UPDATE - tried rebooting using laptop mini usb mouse  into usb port- Still same problem using chromium browser.

What next please?