aerosum,
I'm taking it your PC is a laptop as you have the mobile version of an AMD driver. What brand and model number?
I would also speculate that your laptop is one of those with twin display drivers as your device manager now shows both AMD and Intel. This type of laptop 'intelligently' switches from one display driver to the other depending on the graphics loading. This is designed to save power as the IntelHD draws much less power than the higher spec AMD.
Unfortunately PRE has not shown itself to work well in this twin display environment. Usually there are two ways to prevent the display switching from affecting PRE. One is to switch it off in BIOS or UEFI, selecting it to always run the AMD driver - but this afffects every application. The other is there is usually a configuration utility that allows you to specify that a particular application will always run with a specific driver. If you can find this utility, set it so that PRE always runs with the AMD display.
Finally are you sure you have the latest AMD driver? You list Driver Date: 06-12-2013 Driver Version: 13.251.0.0 (I don't know if your date setting is mm/dd or dd/mm in that line) but the latest I see on the AMD site is 18th Dec 2013 v13.12. So regardless of your date setting AMD has a more recent driver, but with a lower version number to that you list. This is possible if your installed drivers are from the laptop manufacturers site, as manufacturers do often tweak generic drivers for their own hardware.
Cheers,
--
Neale
Insanity is hereditary, you get it from your children
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