QTR-Quadtone RIP

Hi,

I just installed QTR on a windows 2000 machine.

No when I try to select "Printing Model" I get the error message
"Access violation at address 00404CBA in module QTRgui.exe. Read of 
address FFFFFFF9.

I get this with any printing model.

I did not change any other parameter from default.

If I now exit the program I have a QTRgui.ini file in the bin directory.

When I restart the program, I get the error message QTRgui encountered 
an error in the QTRgui.ini file. QTRgui.ini has been deleted...


Copy of QTRgui.ini file:

[Printer]
PrinterName=EPSON Stylus Pro 7800
PrintingModel=Quad7800
[Page]
Width=8.5
Length=11
CustomUnits=0
Orientation=0
PageSize=A4
Media=Matte Paper
Source=Sheet Feed
Copies=1
[Placement]
Top=0.13
Left=0.13
Centered=1
[Curves]
Curve1Name=None
Curve2Name=None
Blend=50
Dither=Ordered
Resolution=1440 super
Gamma=0
Limit=0
Speed=Faster
BlackInk=
Preset=
CustomScale=100
ScaleToFit=0
[Monitoring]
State=0
Folder=
[Options]
RecentFileCount=5
MinimizeToTray=1
Debugging=0
DragDropAutoprint=1
BatchFiles=0
RepeateFileExistsAction=0
Disposal=0
AutoOrient=0
FormTop=19
FormLeft=137
Monitor=0
[Folders]
Image=D:\Programme\QuadToneRIP\
InkDescriptions=D:\Programme\QuadToneRIP\QuadProfile
IncCurves=D:\Programme\QuadToneRIP\QuadProfile
[CurveCreation]
DefaultLimit=70

What could be the source of my problem? Any help is welcome.

Thanks

Theo