i was playin LFS for like a good hour..then all of a sudden i came across this....can anyone ask my why this happen? cuz it never happened before.

PC Specs: Intel Celeron M 1.6 Mhz
2GB Ram
ATI Xpress 200M
Windows XP Home Edition
60GB hard drive

http://i78.photobucket.com/albums/j110/skater235/problem.jpg