Display stuck in unsupported mode

[RudeDawg]

Hello, I tried to set my display settings to the highest setting (1920X**?) and now it is stuck in unsupported mode. I get a blue screen with a text box saying Unsupported Mode that moves around the screen.
I am running Windows 7 Ultimate on a home built machine. My video card is a Radeon 5470 HD.
I am able to start my computer in safe mode however, I cannot open Catalyst Control Center while in safe mode.
A search of this forum and a Google search have turned up nothing except one suggestion to set it to a supported resolution and restart which is impossible since all that is visible is the floating text box.

[Geek-9pm]

You can restart in safe mode, Right?
Here are two methods to workaround your problem.
1. ) Create a new user in Safe mode, log into the new user. Reset and start in the New user. After  that, come back he for more help if needed.
OR
2. ) Remove all video drivers and install again.

[RudeDawg]

Ok, I created another account but I am unable to boot into the regular OS with either account, only Safe Mode. I had set my original account to log in automatically so I did the controluserpasswords2 thing and checked it to require a password thinking that I may be able to access my original account that way since I remember my old password. Wrong. It will allow me to select an account but it still boots to a blue screen with floating text box.
I used Win key+Pause|Break and brought up Device Manager thinking I could go ahead and uninstall the driver. Wrong.  Just in case ... I DID find it in Device Manager and have chosen to uninstall the driver. Crossing my fingers and knocking on wood (my head)! Time for reboot ...

[RudeDawg]

YAYYY! SUCCESS!! I am back in regular mode, will reinstall driver later. Have a great day !

[RudeDawg]

Scratch that .... I WAS , however, able to salvage everything I wanted to save so I am just going to do a clean install of W7. Have a great day/morning/afternoon.

[patio]

Seems a drastic move just to get your video drivers/settings back in order...but Best of Luck...

[jasmin116]

I had set my original account to log in automatically so I did the controluserpasswords2 thing and checked it to require a password thinking that I may be able to access my original account that way since I remember my old password. Wrong. It will allow me to select an account but it still boots to a blue screen with floating text box.

[patio]

You should start a new Post for your issue so it recieves the proper attention...