I dont think that's the problem. I never messed with the Device Profile on the website and things I changed in the Preference is only to connect more often and use more CPU... Take a look:

<global_preferences>
<run_on_batteries>1</run_on_batteries>
<run_if_user_active>1</run_if_user_active>
<start_hour>0.000000</start_hour>
<end_hour>0.000000</end_hour>
<net_start_hour>0.000000</net_start_hour>
<net_end_hour>0.000000</net_end_hour>
<leave_apps_in_memory>1</leave_apps_in_memory>
<confirm_before_connecting>0</confirm_before_connecting>
<hangup_if_dialed>0</hangup_if_dialed>
<dont_verify_images>0</dont_verify_images>
<work_buf_min_days>0.005000</work_buf_min_days>
<work_buf_additional_days>0.300000</work_buf_additional_days>
<max_ncpus_pct>99.000000</max_ncpus_pct>
<cpu_scheduling_period_minutes>120.000000</cpu_scheduling_period_minutes>
<disk_interval>60.000000</disk_interval>
<disk_max_used_gb>10.000000</disk_max_used_gb>
<disk_max_used_pct>50.000000</disk_max_used_pct>
<disk_min_free_gb>0.500000</disk_min_free_gb>
<vm_max_used_pct>50.000000</vm_max_used_pct>
<ram_max_used_busy_pct>50.000000</ram_max_used_busy_pct>
<ram_max_used_idle_pct>90.000000</ram_max_used_idle_pct>
<max_bytes_sec_up>0.000000</max_bytes_sec_up>
<max_bytes_sec_down>0.000000</max_bytes_sec_down>
<cpu_usage_limit>99.000000</cpu_usage_limit>
</global_preferences>


Or maybe it's in this file?

<global_preferences>
<source_project>http://www.worldcommunitygrid.org/</source_project>
<source_scheduler>https://secure.worldcommunitygrid.org/boinc/w...</source_scheduler>
<mod_time>1</mod_time>
<cpu_scheduling_period_minutes>120</cpu_scheduling_period_minutes>
<disk_interval>60.0</disk_interval>
<disk_max_used_gb>10.0</disk_max_used_gb>
<disk_max_used_pct>50.0</disk_max_used_pct>
<disk_min_free_gb>0.5</disk_min_free_gb>
<end_hour>0</end_hour>
<idle_time_to_run>3.0</idle_time_to_run>
<max_bytes_sec_down>0.0</max_bytes_sec_down>
<max_bytes_sec_up>0.0</max_bytes_sec_up>
<max_cpus>16</max_cpus>
<net_end_hour>0</net_end_hour>
<net_start_hour>0</net_start_hour>
<run_if_user_active/>
<start_hour>0</start_hour>
<cpu_usage_limit>60.0</cpu_usage_limit>
<ram_max_used_busy_pct>50.0</ram_max_used_busy_pct>
<ram_max_used_idle_pct>75.0</ram_max_used_idle_pct>
<vm_max_used_pct>50.0</vm_max_used_pct>
<work_buf_min_days>0.2</work_buf_min_days>
<work_buf_additional_days>0.3</work_buf_additional_days>
<suspend_if_no_recent_input>0.0</suspend_if_no_recent_input>
</global_preferences>


Well I edited the <cpu_usage_limit>60.0</cpu_usage_limit> to 99.0, still no change.. The benchmark still only shows one CPU, and only one task is allowed despite the agent stating I have 2 processors when I start the program:

17-Oct-2008 23:11:45 [---] Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz [x86 Family 6 Model 15 Stepping 13]

And why not to 100.00000? It looks like the agent is strictly making sure it does not exceed your requirement, instead of rounding the result to the closest.

I have just begun to use 6.2 yesterday so I may be wrong, but I would give it a try (and mine is definitely set at 100.00000).

Cheers. Jean.

For the 1% you need to use that other setting <cpu_usage_limit>99.000000</cpu_usage_limit> and set the Activity menu to "Run Based on Preferences", but I promise you, zero gain due the quirkiness of the BOINC % CPU time control.