I have Gimp Portable 2.2.17 installed on my Ativa U3 device, running off of an XPpro system. When I attempt to open a JPG file I am told it is an unknown file type. I do not receive this error with my locally installed copy of 2.2.13. The plug-in folders specified in preferences are "C:\Documents and Settings\user\.gimp-2.2\plug-ins" first and "H:\System\Apps\GIMPPortable\App\gimp\lib\gimp\2.0\plug-ins" second. I can see the plug-in files in their folders. JPEG.EXE is among them. Also, none of the filters appear in the filters menu, though I can see them in their directory. Scripts folders locations in preferences are like those above. Does anyone know how to fix this?