Blank Screen and back to lock?!?!?

[Quackattack99]

When I unlock the screen using the pattern, it flashes my home screen and then goes directly back to the pattern screen. I can't get it off my phone, is there any suggestions or has anyone had this happen to them before?

Thank you.

 

[lordfly911]

I occasionally have this problem where I am unable to unlock or the screen just stays black. I just pull the battery and reboot.

 

[chandler583]

X2 on the pull battery and restart. Something similar happens to mine, I don't get my home screen, I just get a black screen, or sometimes just the status bar at the top of the screen. Since 2.2, I have also had one random shutdown, even though my imei number was supposed to be a good batch. I had no problems with 2.1...