NT(the filesystem tipically used by NT, 2000, and XP) LDR(loader)
Sounds like you may have a bad install of XP. I've had similar problems. You could try replacing this file with another, or just reloading XP...
Desktop: Athlon 64 3700, 1024M RAM, GF 6200 TC 256M, 2x 80G, 2x DVD-RW
Laptop: Sempron 2800, 512M RAM, Unichrome, 60G, DVD-RW
Macintosh:G4 1.33GHz, 512M RAM, Radeon 9200 32M, 40G, DVD/CDRW
They get me from 0 to 1...