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Windows 7: Superbar thumbnails flicker on hover, unable to use aer

09 Nov 2009   #11

Windows 7 Ultimate

I'm having exactly the same issue.

I've tried to change settings in regedit, no luck.

Also, I've run sfc \scannow and it says everything is working as it should.

Any other ideas over this?

This problem is a lot annoying, because these are the basis where Win7 works. When it flickers, I simply can't change the application/window, which makes the whole OS useless.

My System SpecsSystem Spec
09 Nov 2009   #12

Windows 7 Ultimate x64, Mint 9

Try a repair install.

My System SpecsSystem Spec
11 Nov 2009   #13

64-bit Windows 10 Pro

Hello Kika,

If you mean the flashing color there, then open the Ease of Access Center in the Control Panel, click on the Use text or visual alternatives for sounds link, and change the setting to none to stop the flashing.

Superbar thumbnails flicker on hover, unable to use aer-eac.jpg

Hope this helps,

My System SpecsSystem Spec

11 Nov 2009   #14

Windows 7 x64

Brink, thank you, but this is not the problem, the problem I have is when I click on those aero peek preview windows they flash and dissapear instead open programs from superbar and icons change color then. If it was just flashing, but I'm not able to open anything
edit: even if not clicking preview window but just icon on superbar, right or left mouse click, nothing happens.

seems I'm going to repair, did back up the network card driver, hope it will fix!
My System SpecsSystem Spec
11 Nov 2009   #15

64-bit Windows 10 Pro

Ok Kika. Please let us know how it turns out for you.
My System SpecsSystem Spec
11 Nov 2009   #16

Windows 7 x64

Quote   Quote: Originally Posted by Brink View Post
Ok Kika. Please let us know how it turns out for you.
I didn't have to repair. Did found registry backup from my documents folder when I started back up files, didn't remember I made it after windows install Registry restore fixed my issue.
My System SpecsSystem Spec
11 Nov 2009   #17

64-bit Windows 10 Pro

That's great news.
My System SpecsSystem Spec
18 Nov 2009   #18

Problem Discovered

Greetings everyone,

I've pretty much given up on resolving the issue, I'm simply going back to my trusty Linux Distro. It never fails.

Anyhow, for documentation purposes, I've discovered that the issue is related to the video card driver, generic in this case. If I don't update the driver, the issue never arises but it limits me to a select few screen resolutions. Installing the driver causes the problem to arise.

This will remain an issue for some users, I imagine, but hopefully seeing some documentation to the problem will let them know they're not alone.

Best regards,

Alberto Garcia
My System SpecsSystem Spec
31 Dec 2009   #19

Windows 7 Pro, 32-bit

I have the same problem also. I upgraded from Vista to Win 7 Pro, everything was working fine until a few days ago. The Aero Peek flashes for a second then goes away. Also the screen saver doesn't kick in or sleep or hibernate. I did a repair install, also uninstalled the video card driver and and put it back on, but still nothing. I did notice when I have the device manager screen open that peek will work with everything that is open. The only thing that was changed to the laptop is that I hooked it up to a TV through the VGA. Also I deleted the old files from Vista that were stored in C:\windows\old. Haven't touched the register.

Thanks in advance.
My System SpecsSystem Spec
07 Feb 2010   #20

Windows 7 x64

Hi people, this problem came back for me, so this time I took more time to investigate it and for me, it wasn't the graphic driver (Nvidia graphic card here). I had to re-install Logitech drivers for my mouse and what happend after that was 'Prevent Applications stealing focus' came permanently in-active and was impossible to enable and this caused the flickering. edit: the setting in registry is HKEY_CURRENT_USER\Control Panel\Desktop - ForegroundLockTimeout (set the value to 00030d40).
My System SpecsSystem Spec

 Superbar thumbnails flicker on hover, unable to use aer

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