Dell Inspiron 9400 - Display Driver Problems

Hi
I had a RAM failure on my Dell Inspiron 9400 with 17" screen and ATI Mobility Radeon X1400 video.
Unfortunately by the time I'd worked out it was a RAM problem I seem to have messed up quite a lot of the Windows installation (my initial reaction was to swap the hard drive...)
I've managed to get everything back up and running on the laptop, but I'm having big problems with the display.
Basically when I boot the laptop the ATI driver doesn't seem to load correctly - so I always boot into a hideous 800x600 screen and when I go to Device Manager I see that the "ATI Mobility Radeon X1400" driver has one of those little exclamation marks next to it...
I can solve this by:
- right-clicking and uninstalling the ATI driver
- then choose "Scan for new hardware" - this then picks up first a VGA driver, then the ATI Mobility driver, then 4 Default Monitors - this takes about 3->5 minutes total...
The laptop then works fine and I can set the screen to a nice 1920X1200...
...but next time I reboot I see the same problem again...
Has anyone got any ideas how I can resolve this?
Thanks in advance for any help/advice offered.

 

Yes, never trust the Windows display drivers, they can be rubbish. Instead, go to Dell's support page, put in your quick service tag (7 characters, on the bottom of the machine) and then download the latest X1400 drivers from there. Install those, and that should solve your problem.

Hope this helps.

 

Thanks - yes - the Dell support website was exactly where I downloaded my video drivers from - but there's no sign there of any monitor driver - so I guess I have to keep using the default monitor.