WOW melanie rozette, im so glad someone else is experiencing this, i have stripped the web of any content about this and have not found anything, and even in your post no one seems to know what the issue is. holding shift doesn’t work, simple as that. Also unchecking Rotobeizer gives your straight lines but only at like 45 and 90 degrees and its like impossible to place them where you want. im watchnig a tutorial right now and the guy is making perfect straight lines where ever he wants without a problem. This is SUPER frustrating. I know im probably just missing the little buttom which will allow me to make the straight lines, so i really need someone to just walk me through it. PLEASE (sorry for spelling error i didnt have time to speel check, gtg!)