how can i write IPV4 address in IPV6 format?  how to convert IPV6 address to ipV4 address?

So I have this problem with Joomla layout in the components. I keep getting this 500 error View not found [name, type, prefix]: PostToBank, postToBankView The view is in views/postTobank/view.php and name is post ToBankViewPostToBank In my controllers/controller.php. So what can I do?

How can i convert public switched telephone network (PSTN) to a voice over IP (VOIP) system without replacing analog phones?

There a PABX in current PSTN system.

is it possible to play a song when loging to pc running on windows 7?

How can i do this?

How can i increase my windows 7 pc speed using a USB flash drive?

Is this possible?

I have a HP pc .

While working on pc LCD monitor displays the message " Monotor going to sleep" and pc power off .

When i power on pc not starting.

After several hours computer starts.

This happens sometimes?

What is the reason for this?

Is this LCD or PC related issue?

what are the differences between J2SE, J2ME,and J2EE ? 

  what are the use of each version in programing?

This Network includes about 100 pcs. During working hours sometimes clients cannot access emails and internet. This happens time to time. I suspect that there is a pc with faulty network card causing this issue. How can i identify that pc?

when i run any program installed in my pc i received " program too big to fit in memory"  . I have 2GB physical memory in my pc. What is the reason for this and how can i solve?

How can I use my UPS to increase life time of it?

Is it good to change the UPS continuously or to charge it few hours before power  on the PC? 

Is there any other advice on this?