Graphics Card Problems After Installing New Driver (ATI Radeon)

I'm having some big trouble with my graphics card!

I installed the new Rage driver for my Ati Radeon graphics card (I think it's an HD 5770 1GB, though I'm not 100% sure). Only half way through the installation, my computer crashed and restarted for no apparent reason (hardly any programs were open, nothing graphically demanding, and I'm on 6GB of RAM on an i5 processor).

Since this crash, the appearence of Windows has changed, for example when moving the mouse over a toolbar icon (for example Chrome), I don't get the habitual preview of the program (e.g Gmail), only the name of the program or webpage.

Also, another evident change is that the said toolbar is now light blue, and no longer translucent, plus the appearance of all windows I open has changed.

I have tried starting some of my installed games and none of them work.

I have checked in Screen Resolution > Advanced Settings to verify that Windows recognizes the card and gives it's properties, but I only get blank info fields or "n/a" (which is why I'm not sure what graphics card I have).

Since the problem I have tried re-installing the driver, but I still get an error message saying I do not have the correct drivers (or something like that, next time the message comes up I will update the thread).

I have excessively abused Google looking for an answer, but nothing seems to solve the problem.

So if anybody can help me, it would be much appreciated, even if it's just sending me to a webpage that I may have overlooked.

If it makes any difference, here a few specs that may have something to do with the problem :

Intel i5 processor (2.67GHz)
6GB Ram
ATI Radeon (HD 5770 1GB ?) Graphics Card
All on a 6 month old Vaio E Series running Windows 7 64 bit

I'm also running a full McAfee scan !

Any help would be much appreciated !

Are you sure you're installing the right drivers? 32bit/x64/Windows?

"I think it's an HD 5770 1GB, though I'm not 100% sure"

Check it. Open your PC and have a look before installing drivers that might not work.

The driver should work on all HD 5000 and 6000 graphic cards though, and I know for sure mine is in that range. Any other suggestions ?

Usually,. if your display is buggered the the drivers are wrong or the install failed.
Have your tried booting into Safe mode to discover the true ID of your graphics card?

http://www.sevenforums.com/graphic-cards/61959-ati-hd-5770-hell-earth.html

^^ while in safe mode uninstall all gfx drivers, reboot, reinstall (tap f8 like a mad man between post and the boot you will see the options for safe mode)

After booting in safe mode and doing absolutely nothing with my drivers, I then restarted to run Windows normally, and hey presto... Everything works !
Thanks for your tips !