Created attachment 4265 Screenshot Scroll handles are always displayed within the clipboard history list, regardless of number of entries/size. It has been reported that 1.2.0-1 did not have this problem (https://bugs.archlinux.org/task/27482)
It seems like the clipboard history window is a bit lowe than it should be.
This bug occurs for me only when the Clipman is added to a panel as a separate applet. When I removed the separate applet, the clipman appeared in the systray after restart. This systray-located Clipman works as expected - without unwanted scrollbars.
Can you try to reproduce with latest git? Currently I have a setup with xfce4-panel and clipman from git and can't reproduce. Although I have another setup where I can see this issue.
I found the cause of it, will be fixed.
Fixed in git b978324. http://git.xfce.org/panel-plugins/xfce4-clipman-plugin/commit/?id=b978324ef02f8bf5c74cc74fee4429ad3382ac83 Thanks for your report. Mike
Thanks for quick repair.