there is a problem with Imagination and shell handles, I believe:
after previewing a few images (10 or 20) the system is not able to preview images anymore, and the preview window shows an error with the image handle. The images that have already been previewed can still be seen (they are probably cached).
I tried increasing the SHELLHANDLESINC statement in config.sys; this only shifts the problem in time, but sooner or later you'll be oput of handles again.
Can this be fixed?