Font render problem w/ MX chipsets

[mkolb]

Hi all,

we are developing a marine simulator in the education sector and are struggling with a strange issue at the time.
On our testing machines with Geforce MX chipsets (both Geforce 4 Go(also MX chipset) and Geforce 2 MX) fonts are not rendered properly.

"Not properly" is illustrated in the following screenshot:
http://img259.imageshack.us/my.php?image=image7wb.jpg

It seems like those chipsets are not able to handle alpha, at least this is the symptom.

Does anyone have an idea why this is happening and moreover how this issue can be solved.
Thanks in advance