Informix Programs using ESQLC

Hello, I am running Informix Version 5 on an Alpha OSF/1 V.1.3 and am able to compile and link my programs using ESQLC. However, when I try to run programs that do database updates, inserts or deletes, I keep getting this error: axphvy.pa.dec.com> informixtp Program now in main. sendsig: can't grow stack, pid 2452, proc informixtp sendsig: can't grow stack, pid 2453, proc informixtp sendsig: can't grow stack, pid 2454, proc informixtp sendsig: can't grow stack, pid 2455, proc informixtp sendsig: can't grow stack, pid 2456, proc informixtp sendsig: can't grow stack, pid 2457, proc informixtp I have even tried growing the stack size of the program up to 32K. Yet, I still get the same sendsig error. Can anyone provide me with any insight into this problem? I would greatly appreciate it. Thanks, Max