I've been having this problem for a few days now: when I try to access any of a number of sites, I receive a message almost immediately saying that the page could not load. However, when I click refresh once or twice, the page loads. This is happening with about 60% of the sites I visit. Here's some background info, if it's relevant: my PB is on a wireless firewalled network with two Windows machines. I checked the log for the wireless router and we had two "pings of death" 10 days ago, which apparently can cause packets within a network to be dropped. However, we've had no pings of death since then, and the behavior has only been going on for 5 days anyway. Any thoughts or suggestions? Thanks in advance!