Either try another rom in rom manager or reboot manually into recovery (either sp or cw) and install a rom.
make sure you install the rom first on your sdcard so when you boot into recovery you can flash it. If you using sprecovery the file must be named update.zip (update if you using Windows 7) and must be installed on the root of your sdcard (that means it do not go into any folders)
before doing the terminal emulator commands make sure you hve 70% or more battery. If you do not have a battery widget get one and ensure you are at that number.
you do this by following this:
install a terminal emulator (I prefer j android hacker but its up to you) and the install sprecovery 99.3b. Use the terminal emulator to flash sprecovery image
Push sprecovery using terminal emulator, if that do not work then use rsdlite.
here is the file:
MEGAUPLOAD - The leading online storage and file delivery service
place sprecovery file on the root of your sdcard DO NOT RENAME
here are the directions:
19. Open Terminal Emulator and type
DO NOT TYPE THE QUOTATION MARKS!
"
su" press enter and allow
"
flash_image recovery /sdcard/recovery-0.99.3b.img"
"
reboot recovery"
(if you going to use clockwork then install it and write the name of the file exactly and that will be in place of recover-0.99.3b.img , it is important you write everything exactly how it is including punctuation, whther its in capital or lowercase letters, numbers, everything)
once you install what ever recovery and follow the steps it will automatically boot you into recovery (it is important you make sure the file is correct or you will get stuck at the M like you lost recovery, if this happen just do a battery pull boot back up, verify your file is (recovery-0.99.3b) is where it is suppose to be go back in terminal emulator and try it again.
Once you are in recovery you are going
click install
allow update .zip
install update.zip depreicated.
after the rom is installed wipe data and cache and reboot.
once you load back up you can install rom mnanger and try again or check with Koush to see if it is an ongoing issue.