Sound problem on Acer Aspire AM5100-U5300A usually can be show by no sound under device manager. Ones who experience said seems like the computer knows that there is a sound card but no sound under device manager. Other user that has Vista runs on AM5100-U5300A.said whenever right click on sound icon and go to playback tab then the speakers grayed out and the message said there is nothing plugged in.

To resolving the problem of no sound on Aspire AM5100-U5300A, you can visit Acer site. Try reinstalling your audio driver first and then input your model and the driver you want. If you are installing the sound driver correctly, the UAA will list at the system under Device Manager. It could be different name but usually it shown as HD Audio Controller.

You’ll needs also to check the Windows Audio service. This can be access by go to Control Panel => Administrative Tools => Services. Look for the Windows Audio service by scroll down the list of services. If you found it then right click and choose Properties. Make sure it is set to Automatic and Start. After restarting the laptop, now the problem of no sound on Aspire AM5100-U5300A should be resolving.

Download the sound driver for Acer Aspire AM5100-U5300A here

For those who keep a close check on Nvidia cards probably knows that looking find of Nvidia 220M drivers are rather hard. That because of this graphic card drivers didn’t listed on Nvidia product list nor listed as a supported chipset in any driver release notes. Even the drivers of Nvidia 220M did not listed in both XP and Vista drivers.

Fortunately, there is a site called DriverHeaven concern about this problem by released the final version of Mobility Modder for NVIDIA
graphic cards. Via the latest DH NVIDIA Mobility Modder 1.0 all of the Nvidia 220M users will available to use it as the latest update
drivers for their Nvidia 220M graphic card to make it works again.

Using Nvidia Mobility Modder Tool 1.0 to your Nvidia GeForce 220M GT will make the new games playable to various platforms. It will also improve the graphic performance and fixing some bugs. If you want it, you can verify to check whether your GPU version is compatible or not with the tool.

Download Nvidia Mobility Modder Tool 1.0 here

After have MAC OS X 10.5.6, VMware Fusion 2.0.2(146107), and Solaris 9 Update 8, the one user has to install by following instructions in the Guest OS Guide. But then he’s got a message says “Action Required” dialog indicating the “DT messaging system could not be started.” And then when checking network settings the “AMD 79C970 PCnet Ethernet” interface identified during the software load does not appear to be available.

Actually if you read the VMware Fusion System Requirements – Guest Operating Systems well you will see the only one listed is “Solaris
x86 10 11/06 (Update 3)”, so if you use MAC OS X 10.5.6 and Solaris 9 Update 8 you might never have recognized drivers by the install
process despite the OS installation the network configuration was complete.

To resolving the problem of MAC OS X 10.5.6, VMware Fusion 2.0.2(146107), and Solaris 9 Update 8 installation you can try
switching the Fusion virtual network adapter type to E1000 rather than the default AMD PCnet (modify the .vmx file to do this).

Go to VMware Fusion (menu bar) => Help => VMware Fusion Help => Navigating VMware Fusion => Using the Virtual Machine Library Window
=> Determine the location of a virtual machine’s files

Add the following line to the target Virtual Machine’s .vmx configuration file by use TextEdit by ctrl-click the Boot Camp
partition.vmx file and select Open With => Other… => TextEdit.

ethernet0.virtualDEV = “e1000″

It doesn’t matter where in the file as long as it’s one its own line.

And one important thing is ensure the target Virtual Machine is shutdown, not suspended and Fusion is closed when you edit the target Virtual Machine’s .vmx configuration file.