RedHat 7.0 apparently installs one version of the kernel and a different version of the header files causing a general mixup in the install. Furthermore, the beta driver for TNT based GPIB controllers (PCI-GPIB, AT-GPIB/TNT, etc) is NOT supported in kernels 2.4.x. The ENET GPIB driver (v1.1) DOES support 2.4.x but requires the use of a GPIB-ENET controller. If switching to this unit is not an option, the BETA 0.6 driver is compatible with 2.2.x kernels (RedHat 6.2).