If you're a Nvidia user, then you will be having the yellow roads graphics problem in BF3.
This is due to an update from Microsoft, KB2670838.
In case you're curious what the update is:
http://support.microsoft.com/kb/2670838
Not addressing any security stuff, just an update on some developer tools, but for the normal pc user, not needed.
It is installed from Windows Update.
To remove, do this.
Go to Control Panel | Programs and Features.
On the left, you will see View Installed Updates
Click on that and all your Windows Updates will be shown. You may need to expand the column, to see the full names.
Then, find KB2670838, right-click on it and select Uninstall.
Your computer will need a reboot to enable the changes.
Now, you need to block it from installing again.
Go to Windows Update by clicking Start | Programs | Windows Update.
Can't remember if its a Critical or a Optional, so you may have to click both to find it.
So, this is my Optional:
Right-click on the one that says the KB2670838 and select Hide Details. The one below is just an example:
Now, this will always be hidden so you won't download it again by mistake.
And hey presto, no yellow roads
