Hello.
Sorry for my English, but I have a little problem with Boinc in Windows Se7en. I'm connected in WiFi and Boinc don't find any network and can't download Work Units.
But it was fine in Vista. I don't know what can I do, i've tried a lot of things, but without success.
Thank you if you can help me.
(I have the latest version of Boinc)

Did you install Windows 7 fresh, or did you update over Vista?
BOINC uses the network connection that the operating system reports.

---

Seven is in dual boot with Vista, no upgraded...

Windows 7 is just a release candidate, right? I'd think it is something in the OS, a driver thing or something. make sure your connection works completely. make sure you allowed BOINC to catch an internet connection through your firewall (port 80 and 443).

And else post the specific error that you get.
Post your system setup, what Wifi you use, drivers, etc.
Post which BOINC version this is with.
Post exactly what you tried already, so either I or others trying to help you do not have to test that again.

---