Hi. I'm a new to the forum and still a newbie learning about Andriod... andd could use some help... having some issues after Upgrading to 2.2 on my HTC Incredible with Market App download & Google Talk authentication issues. I recently got a Droid Incredible and and the first this I did was upgraded to Andiod 2.2 via OTA update (did not Root or S-OFF, etc...). After, I tried to connect to my Google Account but would was getting a 'sever connectivity issue' 'data provisioning issue'. After some time I was able to connect my Google account on the phone(using Wifi). But when using the Market App I would get 'download failure' errors. Also the Google Talk app would get authentication errors. Somethings I have tried to fix this: - Cleared the cache and data for the Market App No help. Same problems continue. - Rooted and in CWM I did a data wipe in recovery. This did not help. - I rooted, S-OFF, and downgraded to Andriod 2.1. By doing this was able to get everything working with no problems. - I then upgraded to 2.2 via manual OTA update (via SD Card). I then got a Market App is not installed error. I found a fix for this ( Android Market app disappeared on Samsung Galaxy S 2.2 update - Android Market Help ), which required locating the Vending.apk file via a file manager and manually pushing it for install. The Market App would show as a downloaded app but this fix worked to get the Market App working, however it only worked temporarily for me. After a few reboots of the phone the Market App would disappear again. So I am now back to square 1 on Andriod 2.2 with Google Talk authentication problems, erratic Google account authentication/connectivity, and consistent Andriod Market download errors. Any resolutions/solutions to this/these issues?