SFML anyone?

I've ported Ostrich Riders to the latest SFML. When I run it, I get a window saying: “Ostrich Riders 0.6.1” is not responding. You may choose to wait a short while for it to continue or force the application to quit entirely. The program is running fine despite the warning. If you click wait you can continue on your merry way. However, I don't find that acceptable. Does anyone what can be done to prevent this? I tried a simple example for SFML I found online. It too caused the popup. Both functions use sf::RenderWindow::pollEvent. Using sf::RenderWindow::waitEvent doesn't have that problem but the program won't work properly that way. Does anyone know of programs in Fedora using SFML? Do they have this problem? -- Dennis Payne dulsi(a)identicalsoftware.com Roon's Raccoon Sprintladder: https://ideas.lego.com/projects/126010