The machine has 2GB installed (and correctly reported by the BIOS) but Debian reports less than half that:

        total:    used:    free:  shared: buffers:  cached:
Mem:  927137792 427286528 499851264        0 87658496 253304832
Swap: 6662434816        0 6662434816
MemTotal:       905408 kB
MemFree:        488136 kB
MemShared:           0 kB
Buffers:         85604 kB
Cached:         247368 kB
SwapCached:          0 kB
Active:         161424 kB
Inactive:       198888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       905408 kB
LowFree:        488136 kB
SwapTotal:     6506284 kB
SwapFree:      6506284 kB

Any ideas?

Rob