The Rosetta Mini 3.14 WUs are taking several days to complete on a 2.5 GHz C2Q Q8300 CPU. I haven't crunched Rosetta in awhile, and last time I did the WUs were 3- 4 hours. Are such long completion times typical?

It is probably using the default settings and they are not always optimal for us crunchers. Go into the Boinc Manager and then Advanced, Preferences and click on the 1st tab called 'processor usage'. In there you will find a line that says: "While processor usage is less than [__] percent (0 means no restriction" Put a zero in the box and then click ok at the bottom of the page. This will prevent your crunching from stopping when your cpu is 'busy' doing other stuff. If you use your pc for other stuff experiment with the number until the pc is okay at both. Next on the last tab, disk and memory usage, go to where is stays "tasks checkpoint to disk at most every __ seconds", the default here is 60 seconds and that is quite often. I have mine set to 900 seconds, or 15 minutes, and should be okay as long as your pc doesn't crash more often than that! Next on that same tab but further down under memory usage it says "Use at most __% when computer is in use." I have mine set to 85 and the line below it to 90, all of my computers work just fine with no work stoppages.

I think your problem is the other project you are working on is taking away the crunching time making the Rosetta units take a long time. The above changes should help some.