Google gives a number of suggestions.. See the link below:
Google Search For "NV4_disp Caught in an infinite loop"
Hope this helps.
I think this is a common problem but cant find an answer.
My PC keeps crashing sometimes with a blue screen sometimes RED. " NV4_disp Caught in an infinite loop".
This often leaves me unable to sign on with a "No signal" message often appearing. Presently in Safe Mode
I gave tried various versions of drivers including the original driver on disc.
All help greatly appreciated.
AS Motherboard K8 Combo Z