Unable to Update Virus Patterns

[SamDee]

I am using iBook G4 (PowerPc) and just installed avast! for mac edition.
When I hit the 'Update Now' botton, the downloading process never succeeded.
Earlier, I got 400.vps.bad files on my desktop, and now the programme stops
responding when the botton is hit. :'(

Could I just go to the avast! website and manually download the virus patterns?
That's just what I does with the avast! on my pc. (I visited the website but found
only that availble in exe file type.)

Many thanks in advance for your kind help! 

[zilog]

I am using iBook G4 (PowerPc) and just installed avast! for mac edition.
When I hit the 'Update Now' botton, the downloading process never succeeded.
Earlier, I got 400.vps.bad files on my desktop, and now the programme stops
responding when the botton is hit. :'(

Could I just go to the avast! website and manually download the virus patterns?
That's just what I does with the avast! on my pc. (I visited the website but found
only that availble in exe file type.)

Many thanks in advance for your kind help! 

This is caused by
1) bad connectivity which causes truncated 400.vps files to be downloaded - such files are reported as those "bad" 400.vps. Correct and complete 400.vps should end with "ASWSignd" (in terminal utility, type: tail -c 8 some_vps_file)

2) rare temporary desync on one of our servers - in this case, just try downloading again after a while. Next server will be selected, with (hopefully) correct content, and vps wil be updated.

Always working hardcore-solution is quitting the application and agent (make sure persistent mode is off, in preferences), and getting the 400.vps file from http://files.avast.com/files/latest/mac/400.vps - and placing it to its rightful place (~/Library/Application Suport/com.avast.MacAvast).

regards,
PC