Dear All; I have tested the Kevan Hashemi's program, on SuSE Linux 10.2 running with AMD Athlon X2 CPU. GNU Pascal 20070904; compiled with GCC 4.1.2 [the latest snapshot], and, compiled with GCC 3.4.6, with the same option << enable languages C, C++, Pascal>> yield the correct results. On Win XP platform, with MinGW using GCC 3.4.5, it does not. I must add that, the testing part of NTL which belongs to the "Timings" does not give correct results on MinGW. But, on Cygwin with GCC 3.4.4, the testing part runs in a perfect manner. When you build and use NTL on MinGW without paying attention to the errors of its test program, there is not also any conflict at all thereafter. With kind regards. Kadir Yuce --------------------------------- Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail