This message was posted on behalf of Intel Corporation
Please confirm if you are currently running the latest video drivers: 4474
Verify you are using straight video cables, same end on both sides of the cable.
The same thing happened to me after updating to the new NVidia Driver that came out this week.
I found out that the problem is not the Intel HD driver but the new NVidia Driver.
You need to roll back the NVidia driver to the previous one and wait for a new driver.
Hope it help.
Thanks for ur message, I uninstalled the new driver and installed an older one and at the moment the flickering has dissapeared So i think its fixed Thank you very very much cant thank u enough .