computer freezing/no internet
I recently had a problem with my laptop slowing down almost to a halt, making it impossible to work on. I have since worked out that it is somehow linked to the power supply. When I run my laptop off the battery it works fine, but as soon as I plug into the mains it slows down all programmes making the most basic of tasks take ages. Also, after running a load of scans to identify the 'virus' I have now lost my internet. The router is fine as it works on my PS3, and I can't diagnose the problem because it comes up with a runtime error. So, is anyone familiar with the power supply slowing down a laptop? And does anyone know how to fix the internet? Any advice appreciated!