I had Groove working on my XP machine last year and I use it with a group of people. I upgraded to Windows 7 and was able to get it working, but not after another reinstall of Windows 7. I backed up my profile and was able to do the grooveclean.exe -all and then copy the profile folder back, but I am not able to download the groove data. it stops after 5.??kb I have had the main person send me another invite and I accept it and then it states that it is waiting for the other person to open it or accept it. I have tried back on an XP machine and still the same thing. The only difference is the acceptance says that it was opened, but the other user said they never received it. I have tried to create a new account and start over with the invite and still no luck. Any help would be great.