Help with Error -4518

I was wondering if anyone can help me with a problem I am having when creating a report using INFORMIX-4GL. I am receiving error number -4518 - "The 4GL program cannot allocate any more space for temporary string storage." during executing of my application. Has anyone had any experience with this problem. I have contacted my local INFORMIX office and received some input to what is going on and why, but no way to solve the problem to date. I am running ONLINE 5.0 and INFORMIX-4GL 4.1 on a RS6000-AIX v3.2.3. This problem occurrs when temporary string space is used. (Temporary space is used for 1. Returning CHAR values from functions; 2. The USING, SPACES, and ASCII functions; 3. Some forms of the CASE statement; and 4. The Upshift() and Downshift() functions.) I have implemented 2 work-arounds that INFORMIX has suggested but neither case has solved the problem. The work-arounds consisted of: 1. concatenating USING with a function call: let x = 17 using "###", f() work-around - use a temp variable for the USING result: let y = 17 using "###" let x = y, f() 2. case <variable> when <constant> call f() .... end case work-around - rewrite the CASE slightly: case when <variable> = <constant> call f() .... end case I have been informed that the cause of this problem is that the internal stack (10 buffers - made up of 512K bytes each) fill up and do not empty on their own and if a 4GL program runs USING enough times then the program will generate this error. Has anyone encountered this problem and overcome it? If anyone has any suggestions on how I might be able to overcome this problem I would appreciate the help. Any ideas, any anything would be appreciated. Thanks, Tony Marchetti marchett@cinnamon.jsan.gtefsd.com GTE Government Systems Corporation (703) 818-4044