Mac Leopard freeze when try to install applications

I have an problem with mac leopard. Every time when i try to install an application, system freeze at "mounting" phase.
This did not happen the first time. I was able to install more applications, but now can not go.
First, system was blocked with safari when I try to install a downloaded application. Now, safari freeze the system every time I try to launch.
Other applications work normally.

I have another observation to make. After i change graphics resolution to hight value, when system freeze, a message is written in different languages, which I am asked to reboot the system.
So what can i do?

Vlad depinde in primul rand ce calculator ai, ce configuratie mai exact!!! Apoi, mai mult ca sigur este vorba de kernel-ul tau care se panicheaza cand incerci sa instalezi ceva. Pentru asta trebuie sa instalezi kernelul Voodoo_XNU 9.6 V 1.1.Il poti lua de pe net Se va rezolva sigur. Succes!!!

Pe moment am renuntat, ca ma disperase sa tot formatez si sa instalez mac in diverse combinatii. Astept sa se mai maturizeze un pic portarea mac-ului pe pc si am sa incerc din nou. Desi am inteles ca in termeni de performanta nu este diferenta intre xp si mac, atunci cand rulezi pe mac-ul pe pc.

i am facing same prob..i am also not able to install any application

please tell me..........y my system hanging and restart when i mount utorrent.dmg file..................


please i want to instal utorrent file...please anybody give me ANSWER.......


please