travelusa wrote:All I get is now a black screen.
What mode of power up ??

I'm not sure which post you're responding to, or what you mean by "What mode of power up?" Also, I'm not sure which Scroll you have. I assume if you've tried loading CM7 you have a resistive scroll, originally running Android 2.1.
If you tried bdb's button combinations, on my Scroll you'd get a completely black screen if you tried Power on + Home buttons at the same time. The machine is trying to boot via the USB port and you need special software running on your PC (called FWDN) to write data to your Scroll. To get out of that mode, the only way I know is to hold down the power button for about 5 seconds (say 10 to make sure since you don't see any screen response). You should then be able to power up as normal. If you still get a blank screen, then I think either your Scroll is dead or you need to charge your battery.
Eddie
@bdb
On my v1.02s 2.1 resistive Scroll, there's no Fastboot option. Power on + Menu just gives a normal boot.
Scroll Options 51624 Firmware: 1.02s Kernel: 2.6.29 Android Version: Sometimes 2.3.4 CM7 Sometimes 2.1 !