Why does half the screen or a small window flash on and off?

February 26, 2015 at 02:35:31
Specs: Windows 7
Why when at a website, is there a small window on my screen that keeps flashing on and off? On the small window screen I can see some computer code in black, green or red type. This happens when I open Internet Explorer.

When I open Google Crome it's like the bottom half of the page is flashing. Sometimes there's a flash of computer code. There's a faint line sometimes dividing the top and bottom halves. The top half stays in one place mostly. I recently had the computer fixed. It seems okay.

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February 26, 2015 at 03:59:13
Lets see if we can get some clues.

Update & Run Malwarebytes' Anti-Malware ( MBAM ) Free Version. Use Quick scan ( now called Threat Scan )
Malwarebytes' Anti-Malware
Make sure you uncheck > Enable free trial < at the END of the install.
Click the Settings tab at the top, and then in the left column, select Detections and Protections, and if not already checked place a checkmark in the selection box to Scan for rootkits.
Copy and Paste the contents of the log, in your reply please.

If potential threats are detected, ensure that Quarantine is selected as the Action for all the listed items, and click the Apply Actions button.
If your MBAM log indicates "No action taken". That's usually a result of NOT clicking the Apply Actions button after the scan. In most cases, a restart will be required.
If you misplace your log, here are ways to find.
(Export log to save as txt)
After the restart once you are back at your desktop, open MBAM once more.
Click on the History tab > Application Logs.
Double click on the scan log which shows the Date and time of the scan just performed.
Click 'Export'.
Click 'Text file (*.txt)'
In the Save File dialog box which appears, click on Desktop.
In the File name: box type a name for your scan log.
A message box named 'File Saved' should appear stating "Your file has been successfully exported".
Click Ok

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March 10, 2015 at 20:02:04
Thanks for advice. This actually happened just one day, but I've had other problems with the computer and recently sent a new message with a few questions.

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