I'm testing sencha designer in the last days. after coping and renaming some projects/apps I can't start sencha designer anymore. this means I can start the program and I still get the window that I have x days left for trial but after selecting a project the window disappears... I see the process in windows task manager (windows vista) but I can't switch to the application sencha designer.

what could be the problem? also after reinstalling (without deinstall) it's still the same. any ideas?

I will try now to deinstall and reinstall sencha desigern...

thanks for your help.