My PC has 1 P4 with Hyperthreading enabled. I saw in the BOINC Device profile this parm: "On multiprocessors, at most use: 4 processors". Do i have to change this or maybe the project weight number to 47 or so to achieve 2x47=94%

BTW, i fired up the old WCG agent and observed that it was happily sharing the idle CPU time 50/50 with BOINC. Never suspected that hyperthreading translated to windows seeing 2 CPU's?

Many thanks Alther (does that reference a very old computer or the german word for age, without the h?)

On the project weight, i should have thought of that answer. The throttle has for me a 3 way function: Temp of CPU, thus reducing Fan need and the said hogging of memory. I worked it down with WCG/UD agent 1 percent at the time and found 95 percent as leaving enough speed for working. As per your indication, even at lowest priority it's just causing noticible delay when working in MS Office, which has poor memory management, particular on the larger files i'm working on. One would think that 1Gb ram should do it, but it does not. Any advise how i could reduce the BOINC memory footprint?

BTW, the tip popup in the systray does not seem to update...have to open BOINC and run an update in there before it changes processing time and percent complete.

I really like it pulling the next WU across before the current one finishes, so it can continue seemlessly......i mentioned UD_MON soemwhere else....could BOINC be coaxed into it pulling multiple units across in store....i used to with WCG. Sometimes my machines runs a week or longer off-line, but continues to crunch WU's. Generally the present batches take about 8 to 10 hours per WU, so BOINC would stall quite quickly.

Bwilliant LawrenceHardin....within 30 minutes of updating device profile to 1 CPU and comms every 2 days it pulled a few extra workunits across. Cache issue solved.

There was an improvement on responsiveness also, which leaves the case of the tooltip on the systray not updating, unless BOINC is minumised to the startbar too.