Hi to all. I run on Windows XP. I surfed the internet for a bit on Sunday eve, next moment got two error messages reading c:\system32\mustafx.exe and c:system\32mustafx2.exe The NTVDM CPU has encountered an e legal instruction. The Pc gives me about thirty seconds and then just shuts off. Ever since every time I try and log in, it say's the same. Can someone please advice me on what's going on. CarlsChill.