Ever since I installed this GTX 660 TI that I purchased from a friend my windows takes 20 more seconds to load the desktop. I have an SSD so it used to take 4-5 seconds from cold boot. Another issue that showed up tonight, I was playing Diablo 3 and changed from fullscreen to windowed mode and my monitor went grey for over a minute and I spammed alt-tab, ctrl-alt-delete, until Diablo came back in fullscreen but my other monitor wouldn't come back. I had to restart my computer and it's fine again. I have tried doing a clean install of the NVIDIA driver, as well as installing an older version of the driver. I feel like it's not a hardware issue because I changed PCI-e ports and the issue was resolved, then Windows installed the graphics driver and restarted and the issue was back.
Has anyone experienced this before? I had a 660 TI in my computer about a year ago and worked perfectly but it died. Now I have a working one in and it's doing this grey screen thing.
EVGA GTX 660 TI SC
P8Z77-V LK mobo