Hi all - when I boot up my COMPUTER everything is fine. However, once the vista symbol is shown the screen goes black instead of the log in screen appearing. The mouse arrow can be seen and the screen works fine but the log in screen just can't be seen. Everything works fine in safe mode.

It's happened twice before but over time, after much restarting and simply waiting a day or two, the log in screen always reappears and things goes back to normal. I then did a system restore and everything appeared to have gone back to normal with the log in reappearing just fine.

However, I left the computer last NIGHT for probably around 20 minutes and when I GOT back, the screen had gone completely blank with only the arrow working. I restarted it and the log-in screen won't appear again. The vista symbol looks a bit narrow and squeezed though. I did another system restore in safe mode but it hasn't worked.

I think this all started when I tried to update my graphics driver to play The Sims 3 ( ) but I undid it when I did a system restore. My moniter SEEMS to work fine.

I would really appreciate any help. Thanks.


Here are some of my diagnx stats:

System Information
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Time of this report: 7/6/2009, 00:23:03
Machine name: OWNER-PC
Operating System: Windows Vista™ Home Premium (6.0, Build 6000) (6000.vista_gdr.090302-1506)
Language: English (Regional Setting: English)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: INTEL(R) Core(TM)2 CPU 6400 @ 2.13GHz (2 CPUs), ~2.1GHz
Memory: 2046MB RAM
Page File: 1314MB used, 2995MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 10
DX Setup Parameters: Not found
DxDiag Version: 6.00.6000.16386 32bit Unicode

Display Devices
---------------
Card name: NVIDIA GeForce 7100 GS (Microsoft Corporation - WDDM)
Manufacturer: NVIDIA
Chip type: GeForce 7100 GS
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_016A&SUBSYS_82221043&REV_A1
Display Memory: 394 MB
Dedicated Memory: 122 MB
Shared Memory: 271 MB
Current Mode: 1024 x 768 (32 bit) (60Hz)
Monitor: Generic PnP Monitor
Driver Name: nvd3dum.dll,nvapi.dll
Driver Version: 7.15.0010.9746 (English)
DDI Version: 9Ex
Driver Attributes: Final Retail
Driver Date/Size: 12/8/2006 03:25:00, 3061352 bytes First things first have you tried to do a full virus and malware scan?Yes, and it was all clear.