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Moderator Action: Threads merged.
Short version of your problem: The graphics card is probably to weak (or the driver too old).
If you could tell us your specs, then we could tell you if this is the case.
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I don't want to have to be rebooting my PC and verifying local cache every time this starts to happen. I might as well give up on the game if I'm gonna have to do that every time. Thanks again for any help.
I just updated my graphics driver (not sure what the chipset driver is, sorry). I also verified the game files but I forgot about the reboot. After doing both of those things I went back to my game to test things out, and unfortunately it only took a couple of turns for the grey tiles to start stuttering, and then about 20 turns in I started getting the red checkered tiles again. I'll try rebooting then verifying game files again and see if that works.
As for damaged hardware I don't think that's the issue since my PC runs automatic health checks and nothing has come back with any problems, but like you said that might not necessarily mean everything is alright. It may be an issue with overheating, but I don't know how to test that either, another thing I'm sure I can find out online. I was just checking the back of my PC with my hand and it was warm but that's just normal.
If it works my preferred solution would be to disable write combining but from everywhere I've read it doesn't look like it's possible with Windows Vista. I've looked all through the graphics card settings and can't find any option for it either. I really want to get a long term fix for this problem because I like this game and am excited for what the expansion is going to offer. Thanks again for the help.
Just finished running multiple simultaneous memtests. I let them run for several hours and they didn't find any errors.
Thanks for replying. I found a fix by simply turning off "auto-scale interface" and turning on "small scale interface" which also fixed my other issue of me not getting leader animations despite the correct graphics setting to get them.Have you tried lowering your settings?
Thanks J. I have now found a fix which appears to have solved this and my other issue of no leader animations; namely, switch off "auto-scale interface" and enable "small scale interface". I don't know why it works, but I'm pleased it does