Startup Problem Solved but Now...?

Thanks Guys....I'm currently running 512mb (2x256mb) of ram in the powerbook but I'd ordered 2x1gb of ram prior to receiving the LB. I did try cleaning the slot with isopropyl but unfortunately it's still dead. No problem though....The Ebay seller offered me two options....Either return the LB for a full refund or keep it with a decent partial refund....I chose to go with the partial, as aside from the failed slot it does work fine and there's another reliable Ebay vendor that I've done business with in the past who also has a LB for this laptop at a very reasonable price which comes with a 100% working 30 day return policy, so I'll likely purchase it, swap them out and keep this one as a backup....Cheers!!