The system is a windows XP professional 2002, the computer has the processor intel pentium dual CPU E2180, 2.00 Ghz processor and RAM 1.99(up until now I have never let my compiuter, although I admit that is a little old)
I did the test as you said yourself.. with the Quick Builder misson.. until now no problem off-line, the patch 4.12.2 and HSFX 7.1 mod work perfectly (and I've even done the test with the client mod ancon inserted.. and runs well, if I do just a fact, and that if I want to use the external view, takes a few seconds.. I'll explain.. after a few seconds I use the external view, return to the view inside the cab, but I think it's a problem of the mod-client inserted into the game, in fact if I disable the client-mod, external view remains fixed as I will, it seems to me that the game runs with no problems and everything works correctly)
if everything works fine.. where could be the problem?
(I apologize again for my bad English XD)