Unable to download.

Hey -- I'm unable to download anything onto my PC. I don't know why but I keep getting a "Internet connectivity" issue error even though I am connected to the internet O.o MY OS is Vista, Dual Core processor PC, 4GB ram, 500GB of hardrive space (415GB remaining) - recently went through a full destructive restore due to issues that just kept declining. She works OK now, but she just refuses to download anything from the internet. Any help would be awesome. Thanks.

• › Unable to launch IE or update virus protection
• › [Solved] How to solve problem downloading for certain files / setup?
• › How to run virus program when can't open it?
• › [Solved] I can't remove BrowserSafeGuard
• › [Solved] Not able to run any antivirus program
• › [Solved] Remove remnants of Dregol search Malware
• › [Solved] My PC has a program called Hades that can't be deleted