Hello, I have installes red hat linux 8.0 and mrtg-2.9.22-2.7.2, libpng-1.2.2-6 rpm -q gd. everytime i try to run mrtg, i grt this error. gd-png: fatal libpng error: Invalid filter type specified gd-png error: setjmp returns error condition Please give me a possible solution for this kinda problem Ahmed Landi, Voice: +254 02 21 31 40, 22 45 55; Fax: +254 02 21 22 13 Email: landi@accesskenya.com www.accesskenya.com | www.accesskenya.info