Just installed 5.1.874 and I can tell it’s better than 5.0 (my opinion). I have an “Acer” laptop and I have noticed software loads faster (with no error messages after re-boot) and web pages load a lot faster. This version 5.1.874 really does rock. Now I can use 5.1…finally.
yeah even my game guard problem & system crashing solved 
The whole system seems more responsive with this update.
Congratulations Avast! team .
Lovely job! It’s like having a free hardware upgrade. 
I have asked a few times, but it must be silly question because no one has told me yet. Because the update isn’t available via the GUI, do you need to unistall the current buggy version of 5.1 before installing the beta update 5.1.874?
Well… a clean install is always recommended but you don’t have to if you want.
http://forum.avast.com/index.php?topic=68927.0 Read post 4 and 5.
As Mi KA El stated you should do a complete uninstall…re-boot…use CCleaner…then install 5.1.874. Using CCleaner helps keep the registry and HDD clean. Another good software is WinUtilities Free. Both CCleaner and WinUtilities Free can be downloaded from cnet.com. Take a look at users signatures to get a good idea on what we prefer.
WinUtilities is not recommened as it trashed a lot of my XP Pro settings. :
you can download it now or wait until it is put in the updater once it is out of pre release
robin
I might be a lucky one WinUtilities has not adversely affected my Vista. Sorry to hear about your troubles.
All of that done and dusted and all seems fixed. Many thanks.
You are more than welcome. Glad we could help.