looks like this may work for more than 3800 & 2000?
curently forcing crossfire to enable creates artifacts and docent do much for performance
downloading now anyway so we shall see if it helps


737-30533: Crysis: Radeon™ series: Graphic corruption occurs during gameplay

The information in this article applies to the following configuration(s):

* Crysis
* Radeon™ HD3870 series
* Radeon™ HD3850 series
* Radeon™ HD2900 series
* Radeon™ HD2600 series
* Radeon™ HD2400 series
* Radeon™ X1950 series
* Radeon™ X1900 series
* Radeon™ X1800 series
* Radeon™ X1650 series
* Radeon™ X1600 series
* Radeon™ X1550 series
* Radeon™ X1300 series
* Radeon™ X1050 series
* Radeon™ X850 series
* Radeon™ X800 series
* Windows Vista 32-bit Edition
* Windows Vista 64-bit Edition
* Windows XP Professional
* Windows XP Home Edition
* Windows XP Media Center Edition
* Windows XP Professional x64 Edition

Symptoms:
Graphic corruption occurs during gameplay

Solution:
Please download and install the following hotfix file to address this issue.