Hello- I've been playing 6.3 for some months now with only minor CTD issues on occasion. A recent saved game refused to load and always resulted in a CTD, as has recent attempts to advance turns on earlier saved games. I have lowered video options to the lowest settings, turned advisor off completely, and re-installed 6.3 several times with no success. I have now tried to install 6.4 with no success. The install program runs but when I get to the options screen there are no options for early or late era campaigns as in the install instruction screen shots. They just are not there. I have attempted to attach a screen shot.
I am running a Dell laptop with updated Win 10 64-bit OS, i7 2.20 GHz processor, GeForce GT 64M video card.
I would greatly appreciate any suggestions. I was in the middle of a really fun and challenging campaign as the Hungarians and had finally gained the upper hand on the Byzantines.