Hi! Today I tried Maple for the first time and unfortunately encountered a silly but really annoying problem. When I write a simple calculation expression like 2+2; it works as expected. However, when I use an expression like sin, ln, Pi, etc., the return (enter) key stops working, the program just doesn't accept them. I'm beginning to think this has something to do with my (quite old) Windows setup since I couldn't find a similar error anywhere in the internet.

I'm working on;