where they are very slow navigation problem in one of your computer equipment connected via ADSL, but the other sails without probem, the problem may relapse in the settings of your computer or your router.
may be an expert or maybe not, but in both cases set a goal TCP Optimizer, which is a tool to adjust the settings of your connection interfaces, which can optimize and exploit the best possible small accessories or profiles those who rarely touch.
curious in general application, based on giving access to the configuration environment but in a kind manner.
http://www.speedguide.net/files/TCPOptimizer.exe
Greetings!