protools 7.4 Crash and exit
 

Occasionally, very often, Protools crash and say this error.

- "Microsoft Visual C * * Runtime Library

Runtime Error!
Program c:\Archivos de Programa\Digidesign\Protools.exe

This Aplication has requested the Runtime to terminate in an unusual way.
Please contact, etc,etc."
To press "Aceptar" (ok) protools crash an exit" -



and sometimes this other -"exception error" andnot let me save the session on the disc

¿what is the problem?, Thanks






PT 7.4

Protools HD2 + Control 24
Windows Xp Profesional, Servipack 2
Amd Athlon 64 3500+ 2,20 ghz
2 GB Ram
500 Hard disk