An anomaly has been found that affects playback performance on Karst Hippotizers with Graphics card chip-sets R9 270 running in Compatibility mode on AMD driver version 15.7.1.
First Generation Karst units with AMD R9 200 series graphics cards should only use AMD 14.9 Catalyst drivers. If you have updated the the drivers to 15.7, we recommend that you uninstall 15.7 and then after a reboot install 14.9 again.
If you need to uninstall 15.7 open Control panel and then Programs and Features. Select AMD Catalyst click and uninstall. Choose uninstall all AMD software. Reboot and delete the C:\AMD folder, and then install the AMD 14.9 driver.
This only affects the Karst with the R9 200 series graphics cards up to approx. 210110 serial numbers and FirePro/Gen-Lock Hippotizers are unaffected. Download the AMD 14.9 driver here
*This is an older post moved from our archived support website.