|From your other thread:|
You have three choices:
1. leave it as-is
2. upgrade the motherboard, power supply & video card (approx $150-200). You will also have to reinstall Windows. If you have a retail copy, you *should* be able to do a "repair install". If you have an eMachines restore disk, it will no longer work & you have have to come up with a *real* copy of Windows, then completely wipe the drive & start from scratch.
3. buy or build a new computer that uses standard parts & can be easily upgraded.