Thanks a billion! It worked!

The chip was detected and successfully programmed.
However I have now another problem: How to flash two bios in it?
The reason I'm using the MX29L3211 is because it's a 4MB flash chip and I want to perform a dual custom bios (two bios in one single chip).
I merged two 2MB bios files into one, which gives me a 4MB bios file, but it seems is not possible to flash the 4MB bios at once, so I suppose I have to flash it in two parts, am I right?
DSC03804.JPG (Размер: 91.91 Кб / Загрузок: 28)
I know that "data length" is the size of the file in bytes, but what about the "start address"? I tried to insert a hex value for the address but no luck.