Silverfast demo causes crash on Windows XP

[Serge_VC]

Hello,

In my search for a new and better scanning software I downloaded the Silverfast Demo PS Plugin. When I start the plugin I can have a prescan, but when I for instance move the floating windows everything turns white and Photoshop crashes. I have to reboot before my scanner works again. The same happens with the Silverfast Demo Twain.

Does someone have any idea what causes this problem?

My configuration:
AMD Athlon 1800XP+
512 mb DDR
Windows XP SP1 Dutch
Photoshop 7
Epson Photo Perfection 2450 USB (connected through USB2 card)

[Serge_VC]

In the meantime I removed Epson Twain driver and reinstalled a newer one. The result is the same. Here is a screenshot of the problem:
http://users.pandora.be/fotografie/crash.jpg

[Serge_VC]

Strangely enough when everything turns white (see screenshot) and I then switch off my scanner, the screens return normal again. I switch my scanner on and I can have a scan now. Strange...

The screens turning white only happens when on flatbed mode. I tested a couple of times in transparency mode and here it works fine but after the scan I suppose the file is send to Photoshop but nothing seems te happen. The status bar with the little airplane remains viewable, even after ten or more minutes...

[matucla]

I am using Photoshop 6
Windows XP SP1
768MB Memory
Epson Perfection 2400

Are there any resolutions other than unplugging the scanner (which seems to work?!) ...?

[Serge_VC]

I uninstalled the demoversion and re-installed it. Now it seems to work although when on reflective mode (to scan regular prints) the screens still turn white after prescan. I switch the scanner off and on and I can continue to work. Strange... But with negatives and slides it works just fine now.