Hi, 
  
When I try to download from app store, I get the message: please try again later. 
Have googled plenty and tried a few things - connected ethernet only, deleted connections, deleted com.apple.boot.plist. 
  
errrr maybe I made it worse, as now I get 'An unknown error has occurred' 
And then the machine chooses to ignore mouse clicks 
  
Any suggestions please? 
  
Cheers, 
Stevo 
  
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Latitude D630, BIOS A17, C2D T8300 @ 2.4GHz, 4GB DDR2-667, HD 120GB 5400RPM SATA-150, Intel GMA X3100, 1280x1024,XBench=75.4, GeekBench=3387, Snow Leopard 10.6.8, EDP v4rev12, BootPack Aug2012.