Sergei Chernykh wrote:

GPU application version is available for beta-testing now. Both AMD and NVIDIA GPUs are supported. 1 GB of video RAM is required. To test it, enable "Run test applications" in project preferences here: https://sech.me/boinc/Amicable/prefs.php?subset=project

Are you really sure those are the minimum requirement ? Because my HD4870 give me the app instanly make error on it with catalyst 12.3
https://sech.me/boinc/Amicable/result.php?resultid=281856
https://sech.me/boinc/Amicable/result.php?resultid=281692
https://sech.me/boinc/Amicable/result.php?resultid=281706
https://sech.me/boinc/Amicable/result.php?resultid=281776
https://sech.me/boinc/Amicable/result.php?resultid=281849
https://sech.me/boinc/Amicable/result.php?resultid=281867
https://sech.me/boinc/Amicable/result.php?resultid=281733
https://sech.me/boinc/Amicable/result.php?resultid=281788
https://sech.me/boinc/Amicable/result.php?resultid=281840
https://sech.me/boinc/Amicable/result.php?resultid=281586

I know the app is curently in beta test and that can be a bug but I really want to know why that won't run on it.

It fails to compile:

can't enable all OpenCL extensions or unrecognized OpenCL extension
#pragma OPENCL EXTENSION cl_khr_global_int32_base_atomics : enable

Try to update drivers. If it doesn't help, then AMD HD 4xxx just can't run this application.

Ok thanks you. But no update available everything is up to date.
It seem need a 5th gen (HD 5000) to work.