According to PS-CS3 for dummies , when using the lasso tool , if you press and hold the option key while dragging you will temporarily switch to polygon lasso tool . I have tried this several times and and it will not work . What am i doing wrong ? I can select several lines that are at different angles but when it comes to curves in the same image all i get is straight lines . I know there are other tools but I trying to learn this tool now . Thanks for help .