Sometimes I have a problem with the Fillet Feature. Occasionally, with your cursor in the graphics area, when you roll your mouse wheel it

changes the value of the Radius.I have noticed this happening at times even without the radius value being highlighted.

Usually you notice it because the fillet fails, due to it being too big, but sometimes you can change the size without noticing. This has obvious problems. Has anyone had this issue, and is there anything that can be done about it?

thanks