Error -229

Has anyone encountered the following errors, and know of any reason/ workaround ? -229 Could not open or create a temporary file. The database server cannot create a temporary disk file. The file should be created in the directory specified by the DBTEMP environment variable, or / tmp by default. Check the accompanying ISAM error code, and look for operating system error messages that may give more information. Possibly your account does not have write permission in that directory, or possibly the disk is full. -106 ISAM error: non-exclusive access. The ISAM processor has been asked to add or drop an index when it does not have exclusive access. C-ISAM programs: Before doing this operation the file must be opened with exclusive access. Review the program logic and make sure it opens this file passing the ISEXCLLOCK flag to isopen. SQL products: Should not occur; please note all circumstances and contact the Informix Technical Support Department. Further info on request ... email replies much appreciated Thanks in advance -- +==============+=======================+======================+==========+ | Andy Wilson | Mountfield Software | St Leonards-On-Sea | England | +--------------+-----------------------+----------------------+----------+ | andyw@mountfield.co.uk | Compuserve 73171,3627 | +======================================+=================================+