Windows-10 & Corel GS-11. A fly-in issue using any tool.

I thought I asked this here but honestly being it was couple months ago, I simply do not know where I asked.

Using any program in the CGS-11 and using any tool.

Left mouse click to use any tool, it begins off to the upper left then flies-in to where I clicked the cursor. All along that fly-in the tool messes up the photo.

I've looked around inside the program and the Net search, nothing. Looked for updates, none?

Un-and-Reinstalled twice, regular mode and Safe mode, still the same issue. It worked just fine in Win-XP in all its Service Packs, including SP4.

Update? Adjustment somewhere in Corel or Windows 10? . . . HELP?