Thank god that you can Re-Install the game just Putting the CD(If you have one) in the Driver....
As Surena Said , Try to Re-install the shaders folder , If it didn't work , Try this :
1.Go to your Computer/Laptop Company Main Website and ,
2.Search for your Graphics Drivers , If you don't get the Graphics drivers from your
Product CompanyIt may not be suitable and you will face Problems
Which I am not responsible of.3.BE SURE to follow the Instructions given ,
Don't go youtube or anyother website except your main Product Company website which Knows which drivers your Product is compatible with.
4.Follow Instructions CAREFULLY , If you miss and thing , It will be hell hard to get them back.
I once though I got only Intel Graphics Drivers , But after Going to my main Product company Website I got the perfect Drivers which Let me have an AMAZING gaming experience , Without that Driver , I wouldn't be here at IV:MP or able to play it.
I am not responsible of Any kinds/types for damages happens that Occurs because Not following the requested Instructions, But I am always available to help.
Try to Follow them Carefully . this is the 4TH time I tell you that , Because I have been in all of that , Even I ruined my laptop graphics to 2/3 Weeks , Because I had no Knowledge and I installed A RX 5 drivers except from AMD Radeon xD
Anyway , I am always free for help , But try Re-Installing and doing as Surena said ,
Then you try my Complicated Method that Needs hell of time.
@Surena How did you put that "Here" link inside a one word ?
I had a look at it and never knew how....