Video problems

[thneed]

I get flashing hexes all over the map, haven't made it past turn 5 with out the game crashing.....

Have to restart the game to change video settings?
Takes forever to skip the intro?

Using the DirectX 10 & 11 selection at start, tried various settings nothing seems to help, including defaults.

Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600)
System Model: GA-770T-USB3
Processor: AMD Phenom(tm) II X4 965 Processor (4 CPUs), ~3.4GHz
Memory: 4096MB RAM
DirectX Version: DirectX 11
Card name: ATI Radeon HD 5800 Series
Manufacturer: ATI Technologies Inc.
Chip type: ATI display adapter (0x6898)
DAC type: Internal DAC(400MHz)
Display Memory: 2805 MB
Dedicated Memory: 1014 MB
Shared Memory: 1790 MB
Current Mode: 1920 x 1200 (32 bit) (60Hz)
Driver File Version: 8.17.0010.1043 (English)
Driver Version: 8.771.0.0
DDI Version: 10.1
Driver Date/Size: 9/18/2010 13:39:40, 616960 bytes
WHQL Logo'd: Yes

[thneed]

Go to "My Documents\My Games\Sid Meiers Civilization 5\" and open usersettings.ini in Notepad. About 15 lines down you will find "SkipIntroVideo = 0". Make this value 1 (to skip the intro movie).

Found this answer on how to skip the intro movie, so ignore that line please.