ALEXSHEFF92

how do i fix this?

WindowBlinds version : WindowBlinds 6.0 (build 32 x86) WindowBlinds is installed correctly on this PC WindowBlinds has not been activated correctly on this PC. Please activate it from SDC. Your machine does not support per pixel borders on WindowBlinds skins. This is because : Your computer graphics hardware does not support acceleration of per pixel alpha. WindowBlinds requires this for per pixel alphablended borders as without it performance would be poor

Everytime i try and apply my changes it gives this message ive tried clicking both options but the skin wont set, any help? thanks in advance