so whats up with cl error -11 and -41.

this only started when i installed a 6600XT, the 6700xt in the same rig was fine.

rig is an onda D8P (C4400, 8 gigs ram, 120 gig ssd, 2x g3 evga 850s) with 1080ti, 1070ti, 1070, 6700xt - ran fine on all that for months

phoenix 5.7b

then added the 6600xt no joy it fails and exits the program.

installed latest win update 21/h1 (i think have to check but its what win update just installed), amd driver is dated 8/25/2011 so its the latest. swap is 64 gigs.

i know people are mining on the 6600xt, so what am i doing wrong?