I just added 256mb of memory to my computer. I previously had 2 other cards (a 64mb and a 128mb).
I put the card in and booted and an error message flashed on the screen for a few seconds that said something about a "memory size error". The system then booted. I went under System in the Control Panel and I noticed that the correct amount of RAM is listed. I shutdown and rebooted and the error message did not appear again.
Do I have a problem?