[Z-Town Pirate]

LoHan,

I experienced the same problem and found a solution. For me, it was a driver issue.

The Channel Map was not a problem a few months ago. Now it has terrible jitter and poor frame rates over land on the Channel Map. I have an ATI Radeon HD 4850. Operating system is Windows 7 RC 64-bit

I experienced the problem using the 9.7 and the 9.8 ATI drivers. Tonight I uninstalled 9.8 and went back to 9.3. There is nothing special about 9.3 other than it was a driver from several months ago before the problem surfaced.

With 9.3, the Channel Map is back to normal. Here is the link I used to download older ATI drivers.

For Vista or Windows 7
http://downloads.guru3d.com/Videocards- ... 7_c31.html

For XP 32-Bit
http://downloads.guru3d.com/Videocards- ... t_c18.html

Try it and let me know if it solves the problem for you.