ZBrushCentral

zbush issues

i have a problem with zbrush and i was wondering if anyone had any suggestions. its nothing major but i wanted to see if it can be fixed. when i create something in zbrush and i move or scale it using in mouse and keyboard, everything works fine. when i move it with the buttons on the side panels, it leaves little “pieces” of the sculpture trailing behind it. i don’t know if its zbrush, my video card, or the computer itself. like i said, its not major because i can just use the keyboard and mouse but if i can get rid of it, that would be awesome. thanks for reading and for any suggestions that you might have. thanks again!
i attached a photo so that you can see what i mean.

Attachments

zbrush_issue.jpg

video card error. ctrl+N will fix it.

thanks but is there any way to stop it from happening in the first place?