well, the error rates are much lower than they used to be
did you check the
important announcements thread, do you possibly have one of those WUs?
the whole idea of BOINC is that you just let it get on with it, if a WU fails boinc will just download another one, problem solved
Well, there could also be something going on with his computer (as many people had noticed on climate under some very specific system configs or something). If that's the case, it might actually be doing the project a favor to allow those units to go directly to someone else, who's system can complete them. Not sure what's going on, on his system.
I'm tracking one down myself, though I know it's specific to my computer, or should I say having installed Windows Vista beta 2 onto it. Einstein@home crunched normally, reported back, and got credit (well except for 1 unit, not sure what happened then as I noticed it after the fact). Rosseta hasn't given me a successful crunch under Vista beta yet, and I know that it isn't just Rosseta. Rossetta's developing their app, and Vista is still beta and in development so is being developed from the Microsoft side of the fence...
For now, I decreased the time setting on Rossetta, and then suspended new work fetch on Rossetta, but enabled it on RALPH. RALPH units successfully completed however so increased the time setting, though whatever issue was happening between Rossetta 5.22 and Vista might be resolved in RALPH 5.23. I'll try to get the debugging info back to the project staff so they can make use of it. That said, I know that Vista isn't an immediate term priorty; because even though the beta was made public, it won't retail before next year. Will give a heads up though

If I can get it all to play (well from my end), I'll certainly try, as well as provide the necessary bug reports to Microsoft as well as the project people as needed...