Multi-thread with tsession and tquery

i use ms sql 6.5
i have a Exception when one thread use the same view or table that these
thread use.

the exception is:
  Exception EAccessViolation in Module Server.exe at 77b6b906
  Access violation at address 77f6cb4e. Write of address 00000010

I have a tsession and tdatabase and tquery for each thread, and the
exception apears when diferent threads use the same view or table.

anyone have the same problem or resolt it??

please answer me

Thanks

Hugo Pacheco