I followed up with Mark about two weeks ago. It turns out that a patch to the user interface controls fixes this problem. The updated cwui.ocx file can be downloaded from ftp.ni.com/support/compworks/windows/latest/cw201
"Mark Phillips" wrote: >>Hello,>>Has anyone else noticed a resource leak when dragging graph cursors around?>It only seems to occur with a large number of plots (around 20). Windows>98 Second Ed.>>Please respond by email.