ComputerBB

I am currently using a linksys 802.11G wireless pci card and it connects to a actiontec DSL router. The admin recently re-installed all of the firmware for the router and when he did my connection got really really choppy and slow, it says it's connected at 54.0 mbps but it's acting more like 2 mbps. If i try and grab anything from the file server we have hooked up to the network it takes forever (100 mb=1 hour). The admin thinks it's my computer because the other person using the wireless network has had no problems and he won't come over and check it out. The only thing that seemed to help was reseting the router but it only worked for about 10 to 15 min. Any suggestions would be greatly apreaciated.