Nostalrius Begins - Quality wow vanilla realm (1.12)

So I just updated my drivers for my Nvidia cards and now my game is stuck at the lowest resolution possible. Any ideas on how to fix this problem?

Browse World of Warcraft Classic\WTF folder and open the Config.wtf file in notepad. Search for "gxresolution" (I think that's the property but I'm not 100% sure) and it should have a resolution next to it, e.g.: 800x600. Change it to be 1920x1080 and save then try logging in and see if it's any different.

I'm not sure how the resolution is formatted in the file (I'm on my work laptop at the moment), so when you enter 1920x1080, make sure to change it similarly to what it was before, like if it was 800x600 when it would be 1920x1080, or if it was 800 x 600, then it would be 1920 x 1080.

By any chance that the suggestion AverageJoe supplied doesn't work, then the best solution would probably be to roll back your driver. The new driver has probably not been configured properly yet.

Nvidia wrote:Windows XP steps to roll back your driver:
Click Start
Click Control Panel
Click Performance and Maintenance and then System (in Category view) or System (in Classic view)
Select the Hardware Tab
Click Device Manager
Double-click on Display Adapters
Double-click on your NVIDIA GPU
Select the Driver Tab
Click on Roll Back Driver

Nvidia wrote:Windows Vista or Windows 7 steps to roll back your driver:
Click Start
Click Control Panel
Windows Vista: Click System and Maintenance and then System or simply System (in Classic view). Windows 7: Click System and Security and then System.
In the left pane, click Device Manager
Double-click on Display Adapters
Double-click on your NVIDIA GPU
Select the Driver Tab
Click on Roll Back Driver