have to delete all Apple drivers from Windows 7 every time connect via USB

Hi,

Every time I connect to itunes via USB cable on my Windows & Laptop, the iphone DOE'S NOT SHOW UP IN MY COMPUTER. It shows up in iTunes and syncs ok, but I cannot access my photos from the phone in 'My Computer' !

As a consequence, I have to uninstal both the MTU driver (or Apple iPhone driver) from "Portable Devices" and the "Apple MObile Device USB Driver" from the USB Contollers tan from within "Device Manager". I then immediately scan the comuter for changes and everything works again and my iphone is listed in "my Computer" again. Eveything is fully functional at this stage.

HOWEVER, as soon as take the phone off the USB cable and try to reconnect the iphone again to the PC, the very same thing happens again and I have to go through ther same procedure all over again!

I have never had these problems before updating my iphone and itunes the last few times, not sure exctly when the problem started, but it was at least a couple of updates ago!

Another thing I noticed since the one from last ios update for the iphone 4, is that my phone mutes itself at random times and I have to restart or respring the device to get sound back!

Not related to the previous problem, but I thought i'd mention it

Since the last ios update a few days ago, it hasn't muted itselld yet but as I have not read anywhere anout anyone experiencing the same problem, I am not too hopeful that it has been fixed!

If anyone can help with a more permanent solution to the USB problem, I would be very grateful.

By the way, I have changed USB cables, restarted iphone and laptop several times, completely removed iteuns and reinstalled it as per the instructions on the itunes site, made ure everything is updated to the very latetest firmware and software, in short, I have tried EVERYTHING, so please don't state the obvious in your replies, I have pretty much tried everything before coming onto this forum.

Many thanks in advance,