Problem with GeoViewer 4.1 and Win 7 64bit

[Dan Kerr]

New user. I have a Lenovo t61p, Win7 64 bit, 4G Ram. Installed Directx 9.0c and .net 3.5.1.

Then installed both the 32bit version and 64 bit version of GeoViewer (uninstalling each time I put on a new version). I tried both versions twice.

Software opened, added layer (about 15 jpeg2000's from NY State - 30-40 meg or so in total). As I zoomed in and out several times (quickly) with the mouse scroll wheel, the program locked. A window came up with the offer to send the error dump to LizardTech, but the window was washed out and the only option was to debug or exit. I might be able to do a screen shot of the dump window but the posted data was many, many lines.

Also tried after disabled AVG Virus. Same problem.

Please help. Seems like just the thing I need but...

Thanks,
Dan