Does anyone know how to fix a memory problem without actually bying more memory? All of my memory slots are full at 248MB, so getting more isn't an option. I believe my computer freezes up because of either a RAM shortage, DRAM shortage, or something. It happens whenever the computer is loading scenery before flight, or after flight. I've updated everything, so it's not the vid card, sound card, or DirectX. Please help.

1.1Ghz
248MB of memory (RAM)
Nvidia MX420 vid card
VIA PCI sound card