Correct me if I'm wrong, but I think the max RAM an iBook can hold is 1.5GB (considering 512MB is soldered to the logic board).
Also, good luck with your indigo! I posted here but I got an indigo iMac a day before you got yours. I don't know what the sonic noise is, but the only thing I can think of that would make any noise would either be the hard drive or CRT (if it's on its way out). I know my iMac makes a loud, continuous humming noise... but I've diagnosed that as the hard drive. Can you tell where the noise is coming from?
On flash, I've given up with flash on every PPC machine I own. Upgrading RAM might help, but it seems no matter what I'm doing, flash just bogs down the CPU and makes things stall.
Also, good luck with your indigo! I posted here but I got an indigo iMac a day before you got yours. I don't know what the sonic noise is, but the only thing I can think of that would make any noise would either be the hard drive or CRT (if it's on its way out). I know my iMac makes a loud, continuous humming noise... but I've diagnosed that as the hard drive. Can you tell where the noise is coming from?
On flash, I've given up with flash on every PPC machine I own. Upgrading RAM might help, but it seems no matter what I'm doing, flash just bogs down the CPU and makes things stall.