./srcds_run: line 357: 12548 Illegal instruction: aka upgrade to a SSE3 capable system.

Tonight I installed Fedora 15 onto a system that is SSE3 capable and ran Left 4 Dead 2. The server install is identical to the one on the server that broke as is the distro itself. The server started perfectly. Valve is requiring SSE3 now leaving those of us running …