Flying blind here because I don't have the same hardware to test but there are 2 things quickly apparent. Firstly you are using an old version 1.20 application which is no longer supported. Secondly you have configured to run 2 tasks at once, which can cause problems sometimes. Assuming you don't want to do any MilkyWay CPU tasks then you could try the following:
Clean out all unsupported BOINC MilkyWay files by detaching and reattaching.
Stop BOINC, copy app_info.xml below plus copy 2 program files you've downloaded into Milkyway project folder.
Start BOINC again.
Download these 2 and save them somewhere in case BOINC has a hissy fit and deletes them. This will allow you to try again if need be without having to download again.
http://milkyway.cs.rpi.edu/milkyway/download/milkyway_1.36_windows_x86_64__opencl_ati_101.exehttp://milkyway.cs.rpi.edu/milkyway/download/milkyway_separation__modified_fit_1.36_windows_x86_64__opencl_ati_101.exeFollowing app_info file will use 1 CPU core to support running 1 GPU task. For now, set computing preferences to use 100% of CPU time. Using less has sometimes caused problems. You can try changing it again if/when you get your GPU crunching MilkyWay properly.
<app_info>
<app>
<name>milkyway</name>
</app>
<file_info>
<name>milkyway_1.36_windows_x86_64__opencl_ati_101.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>milkyway</app_name>
<version_num>136</version_num>
<platform>windows_x86_64</platform>
<avg_ncpus>1</avg_ncpus>
<max_ncpus>1</max_ncpus>
<plan_class>opencl_ati_101</plan_class>
<cmdline></cmdline>
<coproc>
<type>ATI</type>
<count>1</count>
</coproc>
<file_ref>
<file_name>milkyway_1.36_windows_x86_64__opencl_ati_101.exe</file_name>
<main_program/>
</file_ref>
</app_version>
<app>
<name>milkyway_separation__modified_fit</name>
<user_friendly_name>Milkyway Sep. (Mod. Fit)</user_friendly_name>
</app>
<file_info>
<name>milkyway_separation__modified_fit_1.36_windows_x86_64.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>milkyway_separation__modified_fit</app_name>
<version_num>136</version_num>
<platform>windows_x86_64</platform>
<file_ref>
<file_name>milkyway_separation__modified_fit_1.36_windows_x86_64.exe</file_name>
<main_program/>
</file_ref>
</app_version>
<app>
<name>milkyway_separation__modified_fit</name>
</app>
<file_info>
<name>milkyway_separation__modified_fit_1.36_windows_x86_64__opencl_ati_101.exe</name>
<executable/>
</file_info>
<app_version>
<app_name>milkyway_separation__modified_fit</app_name>
<version_num>136</version_num>
<platform>windows_x86_64</platform>
<avg_ncpus>1</avg_ncpus>
<max_ncpus>1</max_ncpus>
<plan_class>opencl_ati_101</plan_class>
<cmdline></cmdline>
<coproc>
<type>ATI</type>
<count>1</count>
</coproc>
<file_ref>
<file_name>milkyway_separation__modified_fit_1.36_windows_x86_64__opencl_ati_101.exe</file_name>
<main_program/>
</file_ref>
</app_version>
</app_info>
This app_info was extracted from one posted on MilkyWay. Hopefully it will work for you. If it's not a configuration issue it may be a driver incompatibility.
As always, should you or any of your Crunching Force be caught or killed, Dingo will disavow any knowledge of your actions. This tape will self-destruct in five seconds. Good luck, chooka.
