Can I make my own 64bit monitor driver?  

I followed the recent discussions to overwrite the EDID info.

1. My first question is. One of my moitor seems to have no EDID info. Even on XP it was not recognized, and I had to add the 32bit driver manually. In Win7 it's recognized as "non-PaP Monitor". Is it then anyhow possible to follow the techniques of overwriting EDID to achieve refresh rates, the moitor are able, but cannot be set in Windows (like 100Hz for 1280x1024 with is a bit sharper and stable for this 132KHz CRT)?

2. A 64bit driver is not availible for the Iiyama Vision Master HM903DA. I don't know anything about driver prgramming, but is it anyhow more or less easy possible to convert a 32abit driver in a 64bit driver.

The 32bit driver can be downloaded here
The driver is in the folder iiyama Drivers\CRT Monitor\HM903DTA_up\

Any help appreciated!

Try the one that someone did for x64 Vista here,

Vista Refresh Rate / Iiyama HM903DT - nV News Forums

I followed the link and downloaded the Vista64 driver. It worked.

Thanks so much for the link!