This was posted previously by another user in the client forums
however there doesn't seem to be much action in regard, so please
forgive the second post.

Client version 7.0.3. Suddenly when in caching or remote mode I am
unable to view my documents with the quick viewer. I can open the
document proper but cannot see its contents via the quick viewer.

Also when I select a document the status window reads, waiting for
online system to process requests. But nothing ever happens. If I
watch the PO it says document sent but nothing ever happens at the
caching client end. If I connect online as mentioned everything is
fine. This is only happening to one client.

I've tried a detect/repair, uninstall / reinstall, can't seem to
make it work.

Any help greatly appreciated.