Ok My Fellow Andorids Users.
I Once Again Am Stuck Trying To Root Things And Flash Things. I Installed
Gingerbreak And Updated ClockWorkMod
Now When I Try Booting IN To Recovery Via The Menu In Gingerbeak Or The Bootkeys.
From Here How Do I Flash Things Ultimately I Want To Flash a ROM And A Kernal But Which Is Better?
Could be that you don't actually have the recovery installed. Because as whyzor said using those key combos will get you into recovery mode. First the lg screen pops up then goes black for a bit then the recovery will pop up. Recovery mode is where you flash all that fun stuff so I'm guessing if it doesn't come up when you boot then I would guess its not installed.
If this is a new phone and you used ROM Manager, that's your problem. You will have to flash another recovery / ROM manually using the instructions in the thread about fixing the black screen issue. It's right at the top of the forum.