Hello I am having problems with the cuda toolkit. After installing nvcc can't find some of the header files. I am wondering if I'm installing cuda wrong. Since cuda needs gcc 4.4 I have to install it as a secondary version(fedora 17 uses 4.7) I install that as the secondary and keep it in /opt/gcc4.4.7/ I then run the cuda toolkit installer. Then I try to compile the samples. They don't usually work. Should i do something else?